Bonsai branch benders, often referred to as levers, are used when a trunk or branch, in addition to being wired, must have additional pressure to bend it slowly into a different position. The bender works as a combination vise-lever, moving the branch or trunk until it reaches the desired position. Our bonsai branch bender selection accepts maximum branch diameter of 5/8" to 1-1/4". Maximum branch diameters are listed in the dimensions field for each of our bonsai branch benders. The hooks and jacks are coated with red vinyl plastic to cushion the branch and minimize scuffing. 2-1/2" hook-to-hook, 5/8" hook length, 1-1/2" screw jack length, 5/8" maximum trunk diameter.