Replace a 3x3 core with this core to make it a different puzzle. Turns a 3x3x3 into a 3x3x4, turns a 3x3x5 into a 3x3x6, and turns a 3x3x7 into a 3x3x8. Requires a screw, spring, washer, and bolt to assemble.
cm:
5.09 w x
4.566 d x
9.906 h
in:
2.004 w x
1.798 d x
3.9 h
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