Cimkiz Magic Cube 3x3 Speed Cube Carbon Fiber Speed 3x3x3 Puzzle Cube Black Environmental Material and Solid Stiker:Made of nontoxic ABS plastic material,harmless to human and environment,non-fading and solid PVC sticker,it will not peel off easily. Easy and Smooth Operation: Light weight,improved anti-pop technology and structure for extremely fast and smooth cornering allows easy-to-twist play without any extra tuning. Ultimate G ift:The Speed Cube is a fun, inexpensive, and unique g ift for everyone. It promotes child's spatial awareness by activating their imagination and creativity; perfect for improving both patience and mental skills. Totally Standard Size:3x3x3cube; 2.2x2.2x2.2inches; 56x56x56 mm. Any problem,pls just contact us,we will response you in 12 hours and help you solve your problem.