MoYu is high quality puzzle manufacturer who has produced many world record puzzles. This bundle includes four top-of-the-line puzzles from 2x2 through 5x5. The WeiPo WR M 2x2, WeiLong WR M 3x3, AoSu WR M 4x4, and the AoChaung GTS M 5x5 all offer fantastic, flagship level performance.