Description:

Design for kids to explore the connection between center of gravity and stability

Kids can constantly adjust the position of nut, and make the Tumbler more stable

Idea teaching aids for school and kindergarten

Great educational toy for child

Material: plastic and metal

Specification:

Height: Approx. 10 cm/ 3.9 inch

Diametet: Approx. 8 cm/ 3.15 inch

Package Includes:

1 x Tumbler