This Universal Adjustable Coupler Lock has a triple chrome-plated finish and can adjust to fit any 7/8", 2-1/2", or 3-1/2" spanned coupler. Two TRIMAX keys are included.
TRIMAX Universal Stainless Steel Coupler Lock (Fits Couplers w/ 7/8" To 3 1/2" Span)
TRIMAX Universal Stainless Steel Coupler Lock (Fits Couplers w/ 7/8" To 3 1/2" Span)