The upgraded version is made of open grinding tools, integrally formed, without solder joints, without the outer ring, and the base adds an anti-slip mat. Greatly improve the smoothness of the product has been stable. 

For the first time, the product needs to put the lubricant inside the package into the gyroscope to lubricate it.

Material: zinc alloy

Packing size 10.4*7.9*8cm