Cradle Balance Balls Physics Learning Desk Toys Home Decorations with Wooden Bas

Description:
This physics learning desk toy is made of a solid wood base, fishing line, stainless steel metal ball, and frame, it is durable, sturdy, and not easy to break. It will continue to move for 10-20 seconds due to air resistance. You have enough time to observe the kinetic performance of its movement. This is not a perpetual motion machine. Perfect for teachers to use in science physics classrooms.
Key Feature:
Entertaining and Educational: This fun science physics learning ball is easy to install and is a great tool for students to understand the laws of motion, perfect for teachers to use in science physics classrooms, fun and educational.
Great Gift: These science physics gadget balls are suitable for birthday or holiday gifts for children, adults, and those who love science and physics.
Specification:
Product Name: Cradle Balance Balls
Material: Stainless Steel + Wood
Size:
Medium: about 13x11x14cm/5.12×4.33×5.51inches
Or
Large: about 18x12x18cm/7.09×4.72×7.09inches
Parts List:
1 x Cradle Balance Balls
Note:
1. There may be slight differences between the picture and the actual color of the commodity. We will try our best to show you the exact color.
2. Please allow slight dimension differences due to manual measurement.

[High Quality]This cradle balance ball is made of a solid wood base, fishing line, stainless steel metal ball, and frame, durable and sturdy, and not easy to break. The well-designed package prevents the swing ball from getting tangled easily.
[Longer Swing Time]Due to air resistance, these swinging kinetic balls will continue to move for 10-20 seconds, you have enough time to observe the kinetic performance of its movement. This is not a perpetual motion machine.
[Physics Learning Tool]Teach and have fun. This kinetic ball is an excellent tool for students to understand the laws of motion and is perfect for teachers to use in science physics classrooms. Easy to install, fun, and educational.
[Desk Decoration]These cradle balancing balls provide special decoration for your office and home. When you are bored with your work or feel tired, you can play with this desktop device which can relax your mind.
[Unique Gift Idea]This kinetic ball toy is a great gift for kids, adults, and those who love science and physics on birthdays, Christmas, and other holidays.