3M WR309LE Gel Wrist Rest for Keyboard (Leatherette, Black) StarTech USB3AAEXT10M It features nickel-plated REAN connectors

It features nickel-plated REAN connectors

the more reflective the surface is

Sony LCS-U11 Soft Carrying Case (Black)

A reed sensor also works nicely

3M WR309LE Gel Wrist Rest for Keyboard (Leatherette, Black) StarTech USB3AAEXT10M It features nickel-plated REAN connectorsAntimicrobial Product Protection 25% Recyclable The leatherette, black WR309LE Gel Wrist Rest for Keyboard from 3M is a gel wrist rest with antimicrobial product protection. It can be used as a replacement wrist rest on the KD45 keyboard drawer. Anti microbial product protection inhibits the growth of microorganisms, such as bacteria, on the product surface. This prevents stains, odors, and product degradation. UPC: 051131980969 Dimensions 18. 00 x 2.