The Spigen Liquid Air is a case made of durable and shockproof flexible TPU. It does not significantly thicken the watch, maintaining its original shape while providing it with scratch protection. It is super light and easy to assemble The design provides access to all function keys without limiting its functionality. Product Features: · Precision-crafted · Slim design · TPU construction · Scratch protection of the device · Access to all function keys · Easy to assemble and disassemble