LP’s Conga Shakers produce quick, responsive sound and are easy to hold. The 3-pack of shakers includes three volumes: soft, medium and loud. They are safety approved for ages 3 and up. White shaker has the softest sound, great for studio applications Blue shaker produces a multi-functional medium volume Red shaker has the loudest and most coarse sound, great for live performances Filled with non-toxic steel shot Patented