With the Ziamatic (Zico) self-locking QUIC-RELEASE Strapless Cylinder Bracket Model QR-D-2 simply place a “D” cylinder in the bracket and press back through the latch to lock it into place—no straps required. The heavy-duty backspring holds the cylinder snugly against the latch and prevents rattling. To release the cylinder, slightly press it towards the backplate, squeeze the levers to disengage the latch. The QR-D-2 is designed to hold standard aluminum, jumbo aluminum and steel “D” gas cylinders with or without most regulators and is made with durable, easy to clean stainless steel. The bracket’s latch is plastisol-coated to protect your cylinders. The latch handles are plastisol-coated for easy gripping and operation.