Material: aluminum alloy Size: 24 * 17.5 * 5.5 cm Color:Blue/Yellow Specification: 1. A layer of silica gel pad 2. Two layers of silica gel pad Weight: 1.29kg(sterilizing box + a layer of silica gel pad) 1.44kg(sterilizing box + two layers of silicone pad) Features: high temperature and high pressure disinfection