... sealed silicone mouse, dust, water and chemical resistant √- Cleaned by water, alcohol or disinfectant√- Durable√- 5 buttons, thin and Ergonomic√- USB connector ... , Blue....(any color as request) Certificate: CE,FCC,RoHS Packing style: white box or blister packingQTY: 50 PCSN.W: 6.9 ... .5 KGSMEAS.: 49 x 22 x 26.5 CMS Waterproof Mouse for Industrial, Chemical and Medical Use