Best in 7 days
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Ships within 48 hours · Estimated delivery Oct 20 - Oct 25
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Description
Kinetic MachinesMake five awesome machines and learn about the physics of force, motion, and energy. Construct a rubber band powered race car that zooms across the floor. Build a catapult and launch objects through the air. Set up a launching device that propels a motorcycle across the floor at the push of a lever. Build a balancing dragonfly model and a weathervane to experiment with forces. A 28 page manual guides your model building and experiments with step by
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.8 ★★★★★
Based on 1424 reviews
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Product Reviews
★★★★★ 4
Cool not cold
Color: Light Gray, Size: Queen
Super silky like material. Comfy and fits pillow perfectly. Wish it could be a more cold then cool.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
★★★★★ 3
It’s ok could be cooler
Color: Light Gray, Size: Queen
Decent — could be cooler. They’re a nice color and texture. It fit my pillows well no annoying zippers it’s nice to sleep on and stay in place.
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Reviewed in the United States on March 8, 2026
★★★★★ 5
Comfort
Color: Champagne, Size: Queen
What a lifesaver, great feel, and awesome cooling feel
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026
★★★★★ 5
Cool bedding
Color: Champagne, Size: Queen
As advertised nice and soft. But most of all cool. It really stays cool, especially on warm nights. A.
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Reviewed in the United States on April 26, 2026
★★★★★ 5
Actually cooling and comfortable.
Color: Royal Blue, Size: King
Incredible cases. Soft, super comfortable and actually cooling as claimed. Highly recommended. Love these!
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Reviewed in the United States on May 18, 2026
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