Shape Additional Counter Weight for PADCW2 When you need serious counter-weighting, the SHAPE ADDITIONAL COUNTER-WEIGHT adds 4 lb. (1.82 kg) to the SHAPE BASE COUNTER WEIGHT for a total of 8 lb. (3.63 kg). It is possible to add as many additional counter-weights as needed. The SHAPE ADDITIONAL COUNTER-WEIGHT is attached to the SHAPE BASE COUNTER-WEIGHT with two screws. It is made from lightweight aluminum for strength & durability. Its black powder coat paint gives it a professional looking finish.