About this item
Rotary rail ball --made of plastic material, high-grade, lightweight and for use, long-serving life,rotary rail
for 4-6 years old--a size to carry, you can put them in your pocket or backpack and play with them anytime,palm rotating ball
Fingertip rotary ball --the part you can play anytime and anywhere with anyone,palm cube
Rotating rail ball --you can release the pressure of the day and let you have a rest with play the ,
plaything--easy to carry and convenient to use, it is simple to use and fun to play,finger relief
