BALMAR Belt Buddy, w/UAA2 Adjustment Arm-Offset Universal Belt Buddy, with 0.5 in offset, MFG# UBB2, with UAA2 Universal Adjustment Arm. The UBB is 10.3 in long and the adjustment slot provides up to 4.5 in of travel. The adjustment slot is 0.53 in wide. Allows precise tensioning without slippage.