uxcell Nitrile Rubber O-Rings 11mm OD 6mm ID 2.5mm Width, Metric Nitrile Rubber Sealing Gasket for Automotive Machine Plumbing, Pack of 10 6mmx11mmx2.5mm auspowers_batchfive It is made of a

It is made of a durable ABS plastic that creates an impact resistant body

Plus air diversion slot design in the middle of exercise bike seat cover

Thread Size 1/2-14 In

79 inch Material: Thermoset Rim Style: Smooth Package Content: 4 Pcs x Ball Knob

uxcell Nitrile Rubber O-Rings 11mm OD 6mm ID 2.5mm Width, Metric Nitrile Rubber Sealing Gasket for Automotive Machine Plumbing, Pack of 10 6mmx11mmx2.5mm auspowers_batchfive It is made of auxcell Nitrile Rubber O Rings 11mm OD 6mm ID 2. 5mm Width, Metric Nitrile Rubber Sealing Gasket for Automotive Machine Plumbing, Pack of 10 Product Features [Size] 11mm Outside Diameter, 6mm Inner Diameter, 2. 5mm Cross Section Diameter [Hardness] 70A Durometer (Shore Hardness) for resistance to penetration [Nitrile Rubber] Standard Nitrile Butadiene Rubber with a wide temperature range from 4F ( 20C) to 212F (100C). The o rings has smooth surface,