THESE BALANCERS ARE RUGGEDLY BUILT OF DIE CAST ALUMINUM FOR STRENGTH AND REDUCED WEIGHT. THEY FEATURE EASY-TO-USE CONTROLS THAT ALLOW FOR ACCURATE SPRING ADJUSTMENT. FEATURES UL STYLE""MARGIN-TOP0PX; PADDING-TOP 5PX; PADDING-BOTTOM 5PX;"" RUGGED CONSTRUCTION CAST ALUMINUM BODY STAINLESS-STEEL CABLE NYLON CABLE OPTION AVAILABLE FOR THE 2.2 LB (1 KG) CAPACITY MODEL; ORDER BLD1/P FOR THIS OPTION ADJUSTABLE CAPACITY ADJUSTABLE STROKE LIMITING DEVICE CABLE GUIDE IN ANTI-FRICTION MATERIAL UPPER SUSPENSION SHACKLE INCLUDED ON BALANCER FOR EASE OF INSTALLATION