SEI MIO Strictly Come Quietly Soft Strap Silicone Ball Gag Review: Comfortable Silence

First Impressions & Aesthetics

Love at First Bite

At first glance, the SEI MIO ball gag strikes a perfect balance between elegance and edge. The soft, matte silicone ball instantly looks inviting. Something you want to bite into. It gives off a promise of pressure and play without looking intimidating.

The strap is a standout feature. Dual-sided, it offers the best of both worlds: one side is wrapped in plush, ultra-soft material that feels luxurious against the skin, while the other reveals a sleek, faux-leather finish that adds a hint of authority and visual appeal. It’s soft where it matters and striking where it counts.

Polished metal rivets, stamped with the SEI MIO logo on one side, add a stylish, durable touch. A little flash without being flashy. Altogether, the design feels classy, sexy, and undeniably well thought out.

This isn’t just a toy. It’s an accessory that looks good even before it’s in use. Elegant, restrained, and ready to tempt.

Play Session

A Mouthful of Obedience

We already own a ball gag, a lightweight, hollow plastic one with holes. It gets the job done, and the added airflow makes it easy to breathe through. But when Hephaestus strapped this one behind my head the first time, I knew instantly: this wasn’t just a step up, it was a whole different world. The moment the full silicone ball filled my mouth, I felt the difference. The weight, the smoothness, the way it sat firm between my teeth... it was delicious. It gave me something real to bite down on, something solid to ground me. And I bit down. Hard. More than once. The fullness was overwhelming in the best way. With no holes, there was less airflow, and that subtle restriction changed everything. I had to breathe through my nose, slower, deeper. It made every moan more guttural, every gasp more desperate. And speaking of moaning, this gag muffled mine beautifully. My cries of pleasure were reduced to wet, messy sounds, swallowed by a delicious ball. And the drool. Gods, the drool. It didn’t just trickle, it poured. Down my chin, down my chest, slick and shameless. It made me feel deliciously out of control. Sloppy, silent, and sexy.

From Hephaestus’ point of view

The difference is just striking. The old gag has been functional at best. Practical, but lacking presence. This one, though, elevates everything. The look alone is enough: Aphrodite is always beautiful, but when gagged with this smooth, dark silicone, she becomes art. The velcro strap makes it quick to secure. No fumbling with the buckle, no breaking the rhythm. And the sound... or the lack of it. Her moans, once sharp and loud, were now low, needy, and muffled into something raw. Watching the drool spill from the corners of her lips, tracing down her skin, is a visual reward. But it is the look in her eyes... wild, blissed, wordless... that makes it perfect.

Build Quality & Materials

Sink Your Teeth In

From the first touch, the SEI MIO ball gag feels indulgent. The silicone is smooth, firm, and utterly satisfying to bite. Sturdy enough to hold tension, yet with just the right amount of give. It’s tasteless and body-safe, making it ideal for longer scenes where comfort matters as much as control.

One of the best details? The section connecting the ball to the strap is also made of silicone, which adds flexibility and prevents any uncomfortable digging into the corners of the mouth. It’s a small design choice that makes a big difference in wearability.

The strap itself is impressively soft. It glides against the skin without pinching or chafing, even when things get intense. However, the velcro fastening leaves a little to be desired. It clings just enough, but only just, at least for me. A bit more length or grip would have made it feel more secure. That said, once it's in place, it stays put through movement, tension, and bite.

Overall, it’s a well-crafted piece that balances sensuality, structure, and comfort. Built to play hard, but feel soft.

Cleaning

You Know the Drool

The silicone ball is silky-smooth and non-porous, making it easy to wash with warm water and a soap. Run your hands over it, rinse away the heat of the moment, and let it dry naturally. The strap deserves the same care. A soft, damp cloth is all it takes. No soaking, no scrubbing, just a light caress to keep it looking and feeling fresh. Let it breathe, let it dry, and store it somewhere private, ready for next time.

Packaging

Presentation & Seduction

The SEI MIO ball gag arrives in a sleek, sturdy cardboard box. Minimalist in structure but rich in tone. The illustrations are suggestive without being explicit, and the printed text sets the mood beautifully: sexy, inviting, and a little bit daring. It feels like more than packaging, it’s a prelude. You'll also find clear instructions and safety guidance, which is a thoughtful and responsible touch. Even if some of it feels obvious, assuming knowledge in kink can be risky. Including these details shows that the makers care not just about aesthetics, but about the safety and experience of everyone involved. A soft, discreet storage pouch would have added a touch of luxury. Something to slip the gag into when the scene is over. A small velvet bag, perhaps, to match the smoothness of the silicone and the secrecy of what’s hidden inside. It’s a small detail, but one that could have made the experience feel just a little more elegant.

Safety & Safeword

When using a ball gag, traditional safewords don’t work. The gag’s entire purpose is to muffle or silence speech. That’s why it’s crucial to establish clear non-verbal safesignals before play begins.

A simple and effective option is a head gesture, like shaking your head side to side to indicate "no". You can also use a drop signal. For example, holding a small item (like a bell or ball) that can be dropped if the submissive needs to immediately stop. This works well because it requires minimal movement and is unmistakable.

For the dominant partner, this means taking on an even greater level of responsibility. You must stay present, observant, and responsive. Watch for physical cues like tensing, struggling, changes in breathing, or eye contact that signals distress. Ongoing check-ins, even just by removing the gag momentarily, help build trust and ensure safety.