If you are cube fan and like collecting puzzles cube, then don't miss it. Enjoy your good time with your family and friends.

About Tensioning

Tensioning is where you change the force of the springs so that the cube is looser or tighter.

This is a very personal thing and you will need to play with the tensions on your cube until you get the one you feel most comfortable with.

The cut corners design of Half arc and center block is made round that make for the cube smooth turn.Built-in spring.Not too stiff, not too loose. so the cube has greater flexibility.And a nut can adjust the tightness degree you wish.So this is a higherror-tolerant rate pluzze cube

Brand：EFT

Speed Cube 3x3 Smooth Magic Cube Puzzles 56 mm Black YJ Guanlong （Black）