Kensington ErgoSoft Wrist Rest for Mechanical & Gaming Keyboards, MIL-STD-810H Method 504.3 Contamination by Fluids, 1.52 kg, 1.52 kg, 19.9 cm, 60.7 cm, 16.2 cm Kensington ErgoSoft Wrist Rest for Mechanical & Gaming Keyboards. Certification: MIL-STD-810H Method 504.3 Contamination by Fluids. Pallet gross weight: 1.52 kg, Pallet net weight: 1.52 kg, Pallet gross width: 19.9 cm