Eduspheres Sound Spheres Set is an excellent sensory tool for auditory discrimination. Children will benefit from developing a keen sense of hearing. Each pair has their own sound and you can play matching games by shaking each ball to find their match. An ideal sensory toy for play spaces, classrooms, and therapy centers 1 varnished wooden box 6 pairs different sounds 45mm beech ball Dimensions: 34 cm L x 12.5 cm W x 5.5 cm H