.100% brand new and high quality. .Made of high-end material, durable to use. .Optimize multi-internal round card foot, and retain the basic step card Angle that structure required. .The size of 65mm, hands could be easily mastered and rotation smooth. .The center column positioning system is optimized, and the contact area between the columns is enlarged and the precision is higher and the shaking is reduced. .The internal structure uses high quality ABS powder. .External with reasonable anti-sticking treatment. .Use the import sticker, the six color connection structure design. .The color is vivid and convenient to observation. .The fault tolerance rate is better.