1" 1 Hole Rigid Pipe Straps - Heavy Duty - Steel - Secures Rigid IMC Conduit.Steel 1" 1 Hole Rigid Pipe Straps - Heavy Duty - Steel features include: Secures Rigid IMC Conduit Reinforced Rib for Extra Strength Reinforced Hole Snap-On Installation Zinc Plated Steel cULus Listed (19434-19435) Not UL LIsted Order Qty of 25 = 25 Pieces Below is more info on our 1" 1 Hole Rigid Pipe Straps - Heavy Duty - Steel