... cable trays design for heavy use trc NO.Channels:5 Channel size :5cm(H)*4cm(W) Rubber base and EVA lid Perforated cable ... trays,slotted cable tray,Rubber cable trays,5-Channel cable cover,outdoor cable tray,,cable guard,rubber cable cover,cable ramp,cable speed hump,cable protector.Features ... rubber base which make the lid can't be twisted . Perforated cable trays