Hevea Wide Neck Glass Baby Bottles are 100% plastic free bottles that come with a single piece anti-colic teat and separate seal made entirely from 100% natural rubber. The rim of the nipple and cap fit the bottle neck perfectly, so there are no spills – not to mention being just that little bit more hygienic. To top it off, the cap has a vacuum-seal finish, so no need to worry about spills on the go either. Especially fantastic for formula milk, the wider bottle neck makes for easier access for spooning in the formula - so practical to use too! Made from 100% borosilicate glass, which is both heat and thermal shock resistant, glass is the safest alternative to plastic as it does not leach any toxic chemicals, it is taste and odour free and is more hygienic as its smooth, non-porous surface is easier to keep clean.