Tube Stock, ABS, Grade Standard, Plastic Length Tolerance Oversized/-1.000 in, Outside Diameter 1 in, Inside Diameter 1/2 in, Black, Plastic Clarity Opaque, Shape Round Tubes, Impact Strength 5.6 ft-lb/in, Friction Coefficient 0.5, Water Absorption 0.4 Percent, Plastic Density 0.038 lb/cu in, Plastic Hardness Rockwell R105