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A bump 4x4x4 (aka mirror blocks) with two solutions.
4x4x4 bump cube with two solution sticker modification that allows you to solve by shape (with scrambled color pattern) or by color with bumped out shape. This sticker modification is sometimes called a "horror sticker mod".
Edge length: 76 mm
Thank you to the following people for their assistance in helping collect the information on this page: Casey Weaver.
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