Numberblocks
✓Price
$19.21
TOPINCN Large Newtons Cradle Balance Balls, 5 Physical Balls Toy Balance Magnetic Ball Home Office Desk Fun Decoration Birthday Gifts (L)
★★★★★
$19.21
Quantity
1
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About this item
- ENTERTAINING PENDULUM MOTION - Watch as ball on end strikes the other sending the on the opposite end into the air while the ones in the middle stay perfectly still. The balls continue in perpetual motion for only 15-25 seconds due to the resistance of the air and friction.
- HIGH QUALITY MATERIALS - The perpetual motion machine is made of rustproof stainless steel and tough fish line, sturdy and strong. The metal balls feature a reflective mirror finish and the base is made of solid plastic.
- TEACHING TOOL - This perpetual motion desk toy demonstrates scientific principles like the conservation of momentum and energy with these swinging spheres in a visually engaging manner. A great gifting chioce for physics teachers or students who are enthusiastic about science learning.
- COOL DESK DECORATION - This newton's cradle balance pendulum is an ideal ornament for desks and tables, whether at the office, classroom or at home, adding a touch of style to your workspace when you need a break from tasks.
- DIMENSIONS - (L) x (W) x (H) 17.5 x 14.7 x 18 cm / 6.9 x 5.8 x 7.1 in (appr.)
Product details
Customer reviews
What customers say about Bigamart
10 Trustpilot reviews total, with 2 shown at a time.
Trustpilot
★★★★★
Excellent
4.5 average rating
S
Sigalit
🇮🇱 · January 2026
★★★★★
I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.
V
Verified buyer
🇦🇺 · November 2025
★★★★★
The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.
Showing 1–2 of 10 reviews
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