Great brain teaser for the kids and a stress reliever for the adults after a long day. Promotes problem solving skills, eye-hand coordination, and cognitive thinking.This 3x3x3 brain teaser cube is ready to play without any tuning. At the same time you can adjust the tension to your specific needs with a screw driver.Faster turning with great corner cutting for advanced play. Made with non-toxic ABS material with long lasting vivid colors.Eco- friendly.
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