V4 SILICONE MOUTH GUARD

The replacement guards fit perfectly on my V4 whitening unit, and having two extras means I can rotate them while one dries. Glad I checked the description first since they don't work with the V3 model, but for my version they're spot on.

These fit snugly onto my V4 whitening unit, so I’m set for months instead of having to order another kit. The silicone feels just as pliable as the original pair that came with it.

Finally got the replacement pack for my V4 and I'm relieved these fit perfectly since the description clearly warns they won't work with the older V3. The silicone feels just as soft and flexible as the originals, so the whitening sessions stay comfortable. Good to have backups ready before I run ou