Eco products hot paper cups, world art, 10 oz., plant-based resin inner lining, 50/pk, 20pk/ct, orange hot drink cups offer a pla inner lining to ensure a leak-proof seal without the use of conventional plastic. Lining is made of a plant-based resin. Smooth rolled rim ensures comfortable use and a secure lid fit. The exterior design features a map of the world with the land masses in white. Cups are made from renewable resources including paper, and with an inner lining made with ingeo biopolymer, a natural plastic made from corn. Bpi certification verifies that environmental claims have been validated by an objective organization. Paper hot cups are not recommended for microwaves. 20 packages of 50 cups, total of 1000 cups/carton. this product arrives to most customers in 2-3 business days.