Quick-Clip design for frequent Schrader use. Prestacycle's oversized spring stands-up to high bicycle pressure for a good seal and safety. The compact angle head goes where even floor pump heads can’t reach, like kids bikes and small scooter tires! Made with 6061-T6 Alloy – it’s as strong as Brass and only 1/3 the weight. Patent-pending 2-way connector screws onto the Prestaflator threaded connector or directly clamps to a hose.