The RIDGID Strap Wrenches are best for any polished pipe. They have a sturdy, cast-iron housing with an I-beam handle and a strong, woven nylon strap that gives a tight grip. Two models available with special strap for plastic pipe. RIDGID No.5P Strap Wrench has a strap designed for use with plastic pipe. Handle Length: 450mm (18in).Strap Length: 750mm (29.1/4in).Strap Width: 45mm (1.3/4in).Rated Pipe Capacity: 125mm (5in).Actual O.D. Capacity: 135mm (5.1/2in).Weight: 1.0kg. Rated Pipe Capacity is the nominal diameter that can be correctly tightened.Actual O.D. Capacity is the actual O.D. that strap can accommodate.