• Wood
• present--the materials used in this are safe and reliable, ensuring the health of your ,knocking
• plaything--the bright color of the enhance observation and cognitive abilities,percussion plaything
• hammer --in the process of hitting the nails, the can exercise hand strength,hammer
• Preschool supply--hit according to the color to exercise color cognition ability, percussion
• --the tapping is smooth and burr- , to protect the tender hands, hammer