Learning Resources Ruff's House Teaching Tactile Set, 30 Pieces Ruff's Tactile Set is great for stimulating the sense of touch, and reinforcing colors, matching, and fine motor skills Sensory play gives children to opportunity for hands-on learning in a way that enhances cognitive, language, and physical skills Ruffs House Teaching Tactile Set includes Ruff, the dog, 20 bones (10 textures, 2 of each texture), doghouse, and activity guide Doghouse measures 5 L x 5 W x 5 H inch and each bone measures 2 inch L Ideal for ages 3+