There are two kinds of rawhide mallets-weighted and unweighted. Both are availablein different face diameters. Weighted mallets have different weights of lead rolled inside the leather, depending on the size and weight of hammer desired. Some mallets even come with replaceable head inserts. Your first rawhide mallet should be a weighted one in the mid-weight and face size. From there, you will be able to determine if a different size would better suit your needs.