Stainless Steel Collapsible Metal Cup This stainless steel folding travel cup has a 50ml capacity which is big enough to quench most any one's thirst with just a few drinks! This cup collapses flat for easy carrying and storage. Each cup is made from high quality, food grade, stainless steel which is great for safe drinking. Perfect for backpacking, camping, tailgating, shopping and much more! Our metal cups are made in a way that when the cup is open the rings fit snugly together making this collapsible steel cup leek-proof! Features a belt loop clasp and individually packed in plain black cardboard box. 1 year warranty against defects.