Letso Multifunctional Waterproof Pouch Case Water Resistant Bag Transparent Adjustable Belt PVC+ABS, Water Resistant 20 Meters,Size: 17.5cm (L) X 18cm (W) X 8.5cm (D) Perfect for Boating, Kayaking, SeaWorld, Water Park, Swimming High Capacity for Smartphones, Wallets, Glasses, Keychain etc. Adjustable and Comfortable Shoulder Belt included Working temperature: 5 to 122, do not use it in hot spring.