Cradle Balance Steel Balls Physics Science Pendulum Desk Toy School Teaching Supplies Home Decoration Gifts for Children

Feature: 1. Full of sense of technology, suitable for placing in the living room. 2. Excellent workmanship and durability. 3. Under the condition of not disturbing, it can swing for a long time, and regular swing can relieve pressure

Specification: Material:ABS+Steel Size:9*7.5*9.5cm Colour:as picture

Package include:A balance ball model

Note: 1. Due to the measurement difference, there may be an error of 2-3mm