Hoist HD-3100 Preacher Curl/ Triceps ExtensionHOIST HD 3100 Preacher Curl Triceps Extension Dual Function Arm Trainer The HOIST HD 3100 Preacher Curl Triceps Extension is expertly engineered for efficient upper arm training. Designed by fitness professionals, this dual function machine allows users to isolate the biceps and triceps with smooth, controlled motion. Perfect for commercial gyms and training studios, it delivers exceptional results in a compact footprint. Key Features Dual Function