Includes 5 rainbow-colored wooden eggs each of which make a different noise. Four eggs shake (2 rattle, 1 chirps, 1 jingles) and the light blue egg twists to make a clicking sound. Made of solid beech wood from sustainable forestry in Germany and treated with multiple layers of water-based stains that penetrate into the wood, followed by a clear protective coating making them totally safe for toddlers who still explore with their mouths.