Black vinyl tubing easily conforms to barbed vinyl tubing fittings and connectors and is clamped using hose, wire or ratcheting clamps. Trimming or cutting it is simple, most sizes can but cut with scissors or heavy duty shears (it can also be cut with PVC pipe cutters). Manufactured to have a smooth interior and exterior, our black vinyl tubing prevents solid or sediment build up and is practically incapable of bacterial growth. 3/4" IDx1" ODx50Ft Flexible Non-Toxic Black Vinyl Tubing Our black tubing has a Shore A hardness and may be steam sterilized.