MADE OF SOLID BRASS! This model features ergonomic handle in Small (3finger only), Medium or Large (3 and 4 finger only) that tapers smaller toward pinky. Micro-adjust one screw using visual speed dial to reference settings. Turn in to make release hotter (faster), back out to make slower. Assembled with a standard click, but a fast click is sold separately. CLICK HERE for H.B.C. adjustment and clicker change video.