DESC: 50 lb. Weight Stack Add-On Kit for the Body-Solid& G8i Home Gym takes the standard weight stack to a new level of performance. Add 50 lbs. of resistance and the convenience of weight stack selection. Fast and simple installation make this a must-have for your plate load system. Includes five 10 lb. plates and selector pin. For use with G2B, G3S, G4I, G5S, G6B, G8I, G10B, EXM1700S and EXM1950S Home Gyms only.