Features: Relieve pain without medicine. Hot and cold therapy combined with compression therapy can accelerate recovery times. Multiple-use: this cold hot pack may be used in the microwave or freezer. Convenient and lightweight. It is very lightweight allowing you to pack and carry anywhere The high elastic strap fits for most people. Soft and self-fastening strap enables the ice gel packs to be attached around almost any body part: knee, ankle, neck, wrist, shoulder, elbow, back. Item type: Ice Pack Set Material: Nylon Color: Blue Capacity: 500 ml Size: 38x15cm Directions: Freezing: 1 hours in freezer (optimum). Heating: Place in microwave for 30 secs (initial) then heat for further 10 sec increments until desired temp is reached. WARNING: Keep an eye on the pack in the microwave to ensure it is not ballooning due to overheating. Package includes: 1pc Ice Pack with Elastic Strap Notes: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3cm measuring deviation due to manual measurement.