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

Thanks to the thick nylon construction and hard plastic end caps

or household use from Power-Line or from an authorized Power-Line reseller is free from defects in materials or workmanship under normal use during the warranty period

Our aluminum barbell collars are designed for quick and easy use

Benefits of the Blitz Ski Trainer

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