Our sustainably certified bamboo wood and glass water bottle can be used at home or when out and about to help keep you hydrated. Glass flask is made from high borosilicate glass which is strong and light Casing and lid made from natural bamboo wood Zero plastic or melamine, free from BPA, BPS, PVC, lead and cadmium Large capacity: 550ml Designed to last: no warping, discolouration or fragile small components. Each box contains 1 water bottle and the packaging is 100% recyclable cardboard.