DaYan 2 Guhong 3 x 3 x 3 Speed Cube Green Puzzle Bestselling Speed cube: Dayan Guhong Spring Structured, Tension adjustable, Smooth turning Size 5.7cm x 5.7cm x 5.7cm Long-lasting PVC sticker: Red/Orange, Blue/Green, White/Yellow To solve it by making each side the same color, difficulty level: medium