The Innovative Percussion Fundamental Series F7 Soft Rubber Marimba Mallets have more attack and volume than a yarn wrapped mallet. Birch handles make these mallets more durable, great for beginning percussionists. Manufactured by the leader in high quality keyboard mallets, the Fundamental Series was specifically designed with the beginning percussionist and budget conscious band director in mind. This economical series offers the beginning percussionist and banddirector a quality product at an affordable price.