Natural Beech Wood Rattle Animal rattle Sensory Toy Etsy Montessori Wooden Rattle with Ball I The Montessori Room Toronto Max Shaker Rattle Ivory Mae + Me Maxims Wooden Rattle Unisex 8.5 Inch Wooden Rattle at Rs 65 piece in Ghaziabad ID. Rattles work on the baby's fine motor skills by encouraging various types of grasping skills. They grasp and hold the baby's attention, improving their cognitive growth. Babies observe that as they move their hands, the rattle sounds, and start understanding the concept of cause and effect.