Superior Material: This cup is made of food-grade stainless steel, strong, wear-resistant, drop-proof, safe and healthy, durable and easy to clean. Easy to Use: After opening the cup lid, rotate the folded layer in one direction to expand the cup to its maximum height. Then fix the shape of the cup, turn it upwards, and tighten it easily and conveniently. Foldable Design: This cup has a foldable design and can be folded into a very compact package. Each panel is larger, making it a thin and flat plate-like storage plate, which is easy to carry after folding. Wide Range of Uses: The collapsible cup is suitable for camping, hiking, mountaineering, and other outdoor activities. It is very suitable for outdoor activities and daily use. It can store hot or cold water, tea, juice, or carbonated drinks. Description: 1. Telescopic stainless steel mug with a shiny and elegant appearance, easy to clean, easy to store after use. 2. Comes with a buckle, easy to carry, perfect companion during travel, with a keychain, takes up only a small space in the suitcase. Attach it to a belt loop, backpack, or jacket. 3. As a reusable mug, camping mug, travel mug, camping mug, best travel accessory, foldable cup, fun, lightweight, and can be carried with. Product Features: Material: Stainless steel. Capacity: S: approx. 75 ml, M: approx. 150 ml, L: approx. 250 ml Size: S: 50 x 65 x 45 mm, M: 65 x 80 x 60 mm, L: 80 x 83 x 75 mm. Package includes: 1 x Stainless steel travel mug (S) 1 x Stainless steel travel mug (M). 1 x Stainless steel travel mug (L). Note: Please allow 1-2 mm error due to manual measurement.