"Each package contains (2) rubber cable ramp straight pieces. The 18,000 lbs. per axle Industrial/Commercial use 5-Channel Rubber Cable Ramp Straight Piece. Runs along shop and warehouse floors to protect important power cables from vehicle traffic. Each piece has interlocking connectors to span various lengths of cables. Protects cables, wires, and hoses up to 1.5""D from warehouse vehicle traffic indoors or outside. (5) 1.5""W x 1.5""H cable and wire channels. Modular design allows straight pieces to be connected together or to 22. 5 Degree turn pieces (DH-CP-2R). Heavy duty thermoplastic rubber with a highly visible yellow safety lid (Operating Temp. -40F to 131F). DH-CP-2 is designed for industrial/commercial warehouse locations. Heavy duty gauge rubber ramps will have an associated odor due to out-gas, and the best way to off-gas thick rubber ramps is by exposing them to the sun for a period of time in warmer temperatures. This should speed up the out-gas process and reduce the smell dramatically."