We have two types of weights. Weights for the tops (STEADY Weights) and weights for bottoms (STRONG Weights). Every product description explains the type of weight used and recommended ways to get started. We sell our weights in packs of (2) two: have two weights. The STEADY weights weigh .25LB and work with all of our tops. The STRONG weights weigh 1/2 Pound and go in a majority of our KILOGEAR bottoms.