While not required, we highly recommend using the Russet mallet to safely assemble your piece. The rubber head ensures easy, gentle assemblage and protects your piece from damage that might otherwise occur if using a steel or metal hammer. Russet cannot claim responsibility for any damage to its products incurred from the use of non-rubber mallets or hammers. Please keep in mind that a mallet does come with every Sidekick; however, the mallet is not included with the Champ.