Stainless steel collapsible cup collapses to 1-1/8" x 2-1/2" diameter for easy portability. Our collapsible cup has our SE logo laser printed on it and is great for the busy Traveler, or for hiking, camping, outdoors, and more. The cup holds 4.7 oz. And comes with a keychain and key ring to attach to your belt, backpack, or to anything for easy accessibility. Easy to use by removing the 304-Stainless steel cover and easily extending the cup to its full height with a simple Flick of the wrist. Our collapsible cup makes it much more convenient to enjoy whatever you're drinking while out in the wilderness, at home, or on an outdoor Adventure. Survival Series collapsible cup with hard case cover and for hiking, camping, outdoors, and more great for your backpack, glove box, to carry on your backpack, and more dimensions Collapsed: 1-1/8" x 2-1/2" dimensions expanded: 3" x 2-1/2" material: 304 stainless steel round lip includes keychain ring weight: 3.2 oz.