Toro Micro Distribution Irrigation Tubing, 4mm ID, 100 Foot Coil Designed to distribute water to precise locations Can be used with 1/4 inch barb fittings to move water to a drip emitter Can be slipped over the NGE male emitter connection as an exit tubing Color is black with Toro's blue stripe for qualit, constructed of LDPE Tubing is 1/4 inch and sold per coil (fittings are sold separately, per bag)