Meet the Titan Fitness Wooden Stackable Wood Jerk Blocks: a set of stackable wooden blocks with 3 height options that are great for jerk exercises. They come with a silencer pad with a thick, high-density foam and PVC cover. These have 6, 12, and 15-inch height options.
These blocks are made from 0.6875-inch of high-quality plywood with interlocking puzzle joints. The panels are rounded for safe use. These have handles, so you can easily move them around.