OK - Let's get one thing straight. This hammer isn't a sledge hammer and it isn't a rubber mallet. This tool is a Dead-Blow Hammer. It is designed for driving two pieces of wood together. It is most commonly used to drive pieces together for joinery. The head of the hammer is made up of multiple shot which absorb energy as the head strikes another surface. This provides minimum recoil.
This particular set of Dead-Blow Hammers is among the best I have ever used. I really like the shape and style of the handle grip. It is extremely comfortable and easy to grip. You will love it two, if you use it properly.
I have purchased two of the 1 lb hammers and two of the 2 lb hammers. They were stored in an unheated garage over the winter. The plastic faces faded in color and shattered when used the next time.
people pulling tools must have problem getting or reading numbers I ordered 2 sizes but they turned the qty. around from one size to the other sears is really going backwards