Newton Cradle Pendulum Ball
$203.50
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Unleash brain like Newotn in this product. Item Name:Newton's cradle pendulum balls Features and specifications: Specifications:• Size: 8.5 x 7 x 9 cm (3.35 x 2.76 x 3.54 in)• Style: Square, T-shape• Material: Steel ball, plastic skeleton, fishing line Reminder: The parcel has been packed carefully. Please open it carefully as well. The rope is easy to tie
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