Chief TPK2 Pole Clamp Kit - 2 to 3in OD (2 Pieces) Pole clamps for Chief's TPP, TPS and TPM series of Truss and pole mounts Features: Kit includes 2 clamps and hardware to install Chief's TPS and TPM mounts to existing round or square poles Specific kit adaptable for round and square poles from 2" to 3" OD