Numberblocks
✓Price
$15.44
TOPINCN Newtons Cradle Balance Balls, 5 Physical Balls Toy Balance Magnetic Ball Home Office Desk Fun Decoration Birthday Gifts (M)
★★★★★
$15.44
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1
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About this item
- TEACHING TOOL: Demonstrate conservation of momentum and energy with these swinging spheres. Let's start from Newton's cradle balance balls and give the dream to your child!
- DIMENSIONS: (L) x (W) x (H) 14 x 11.5 x 14.5 cm / 5.5 x 4.5 x 5.7 in (appr.)
- DESK DECORATION: This Newton's Cradle is a perfect decoration for desks and tables, whether at the office, classroom or at home.
- NEWTON'S CRADLE: Watch as one ball on one end strikes the other sending the one on the opposite end into the air while the ones in the middle stay perfectly still. Continue in perpetual motion for only 15-25 seconds due to the resistance of the air and friction.
- MATERIALS: The cradle is made of durable stainless steel, the metal balls feature a reflective mirror finish and the base is made of plastic.
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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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