12+ months. 2 x 9 fl oz (260 ml). Tumbler sipper. Easy clean valve. Spill proof. Keeps drinks cool. Easy-grip sides making drinking easy. Removable two-piece valve - easy access, easy clean. Insulated. Dishwasher safe. To boldly go. tommeetippe.com. Any questions? Visit our website: tommeetippe.com. BPA free.