Plastic Tube Stock, PTFE, Grade Standard, Plastic Length Tolerance Oversized/-1.000 in, Outside Diameter 1 in, Inside Diameter 1/2 in, White, Plastic Clarity Opaque, Shape Round Tubes, Impact Strength 3.5 ft-lb/in, Friction Coefficient 0.07, Water Absorption 0.01 Percent, Plastic Density 0.078 lb/cu in, Plastic Hardness 55D