since 1976
Rubber Tubing, 4.0 mm (0.16 in), Black, 5 m (16.4 ft)
Rubber Tubing, 1.7 mm (.067 in), Black, 5 m (16.4 ft)
Rubber Tubing, 1.7 mm (.067 in), Frosted, 5 m (16.4 ft)