Merrithew Star Knob, 4 Prong 1/2" (Reformer) functional trainer Weight designations permanently stamped into

Weight designations permanently stamped into color-coordinated rubber end caps

extra sturdy steel frame as well as a thick and comfortable pad to give you ultimate comfort throughout the inversion movement

Hard Chromed sleeves

Benefits of the Blitz Ski Trainer

Choose from 11 different weights (4 to 30 pounds) to suit your fitness level and preference

Merrithew Star Knob, 4 Prong 1/2" (Reformer) functional trainer Weight designations permanently stamped intoNote: Special Order Item. Please allow 2 3 weeks for item to arrive. Used on Reformer accessory board receptacles to attach Jumpboards, Cardio Tramp Rebounders, Rotational Diskboards and more! See model detail information below. Sold individually. Note: this product is for use with Merrithew brand equipment only. Details: For use on Reformers manufactured after May 1, 2010. For earlier model Reformers, use the five prong 3 8" Star Knob to attach