Used on models: GZFI80030 - EPIC STRENGTH FIXED ISOLATED CHEST, GZFI80032 - EPIC STRENGTH FIXED ISOLATED CHEST, GZFI80033 - EPIC STRENGTH FIXED ISOLATED CHEST, GZFI80130 - EPIC STRENGTH FIXED ISOLATED LEG EXTENSION, GZFI80133 - FREEMOTION ISOLATED LEG EXTENSION, GZFI80230 - EPIC STRENGTH FIXED ISOLATED ROW, GZFI80233 - EPIC STRENGTH FIXED ISOLATED ROW, GZFI80333 - EPIC STRENGHT FIXED ISOLATED SEATED LEG CURL, GZFI80431 - EPIC STRENGTH FIXED ISOLATED LEG PRESS, GZFI80532 - EPIC STRENGTH FIXED ISOLATED AB, GZFI80632 - EPIC STRENGTH FIXED ISOLATED FLY/REAR DELT, GZFI80732 - EPIC STRENGTH FIXED ISOLATED SHOULDER, GZFI80932 - EPIC STRENGTH FIXED ISOLATED HIP AD/AB, GZFI81032 - EPIC STRENGTH FIXED ISOLATED BICEP, GZFI81132 - EPIC STRENGTH FIXED ISOLATED TRICEP