GO! Qube 12" Companion Set - Angles 55791 This companion set expands the number of quilt blocks that the GO! Mix & Match Blocks can make from 72 to over 144. You must own the corresponding size GO! Mix and Match Block set before adding the same-sized companion set. The angles companion set includes four GO! dies that work with existing GO! Mix & Match Sets: Triangles in Square - Center, Triangles in Square - Sides, Kite and Trapezoid, cutting mat and storage box, instructional DVD & pattern book, 10 free patterns.