Remove broken sprinkler riser parts from irrigation supply line fittings using the Stub Wrench. The stub wrench fits 1/2 in. and 3/4 in. plastic sprinkler riser ends broken off in fittings. Insert stub wrench end into broken riser bit; twist into broken bit counterclockwise until it is removed from irrigation supply line fitting. Durable stub wrench is made of metal and has a sturdy red handle. Use fittings and other landscape watering devices to set up a new irrigation system, expand an existing system, or make repairs.