Qm-h 7x7 Speed Cube White Twisty Magic Puzzle Stiker White Fully functional, Spring Structured for fast turn,Rarely lockup White Base Core Size 3.3"x 3.3" x33" Net Weight:11.4 oz Longlasting PVC sticker: Red/Orange, Blue/Green, White/Yellow To solve it by making each side the same color, difficulty level: difficult Eco-friendly, recyclable material product, harmless to human and environment