Product SKU:FMDWSMBTL Color/finish:Transparent Capacity:500ml Material:Borosilicate Glass Warranty:1 Year Good Health Recyclable and Reusable Our Borosilicate glass water bottle is made of 100 Percent high borosilicate glass, which can withstand extremely high and low temperature A small silicone O-ring in the cap keeps your liquid inside so you don't have to worry about spills. Our lids are made of stainless steel and ABS, which meets FDA standard (food contact saf) Glass water bottles not only keep water deliciously fresh and cool, they're superior to a collapsible water bottle they won't leak or puncture. Single use plastics are an epidemic to our environment, we are here to help make a difference