PREORDER H&S Airbrushes - Quick Fix end piece - innovative colour adjustment with memory for INFINITYHarder & Steenbeck Quick Fix Rear Handle for Infinity The Quick Fix Rear Handle precisely regulates needle and trigger movement allowing you to lock the spray pattern at a desired level for consistent results. It features a fully adjustable memory function that lets you instantly switch between full double action control and a pre set spray pattern. This rear handle is compatible with all airbrushes in the Harder & Steenbeck Infinity range.