YOY Stainless Steel Outdoor Portable Folding Telescopic Collapsible Picnic Hiking Camping Travel Drinking Cup Gargle Mug Holds 5-ounces of fluid when assembled Fits in the palm of your hand, slips into your pocket or purse Ideal for use while hiking, camping, hunting, traveling, outdoor activities, and concerts Measures 2.5-inch in diameter and 1-inch high when collapsed Keychain clip easily attaches to your backpack or belt loop