It's made of BPA and phthalates-free 18/8 stainless steel with a double-wall, vacuum-insulated construction, holds up to 17 oz. of liquid, comes in several fantastic colors, and keeps drinks cold for up to 24 hours or hot for up to 8. This also features a wide drip-free mouth and a no-drip insulated lid. Hand wash for proper care and do not freeze. Laser engraving sizing: (Laser Standard): 2 1/2 w x 3 1/2"h, (Laser Max): 3 1/2"w x 4"h. (Laser Small): 1"w x 3"h, (Laser Wrap): 9"w x 4"h.