This fascinating puzzle was designed by Tom Jolly, and is made under license to him. The Cubed Burr is a heavily modified 6 piece burr with serial assembly into an interlocking cube shape. Each standard burr piece is augmented with several 2X2X2 or 1x2x2 blocks. There is only one solution and it is difficult! Each puzzle is signed and dated, and no more are likely to be made. The 6 wood puzzles use many woods including bocote, zebrano, rosewood, shedua, tulipwood, paduak, ebony, cocobolo and others.