Drop-GuardTM shatterproof silicone glass baby bottle protectors and containment system is ideal for active parents who will accept nothing but the safest products for their bottle feeding baby using BPA free glass bottles without the worries of glass breakage. The Drop Guard silicone baby bottle is easy to use and clean. There are no holes or "viewing slots" for bacteria to grow between the glass and the sleeve. Drop Guard's patented proprietary process makes the sleeve a permanent accessory to your bottle. Silicone glass baby bottles allow kids to grip without slippage. Perfect for on the go. It prevents breakage and chipping in diaper bags and purses. The Drop Guard glass baby bottle protector also adds impact protection if dropped accidentally. Silicone sleeves are temperature resistant and can be sterilized without effecting the integrity of the silicone sleeve.The Drop Guard silicone sleeve is dishwasher safe and microwavable. It is 100% non-toxic. Eco- friendly and recyclable.