• Grey
  
• Aluminum
• Butterfly shape
• Bearing
• weighted rim design
• precision gap dials

The Yoyo factory 401 represents the most diverse playability that yoyos have to offer. The dials on each side allow for 180 different settings for each side with each click representing .001 of an inch. There is no wear in period for the 401, simply adjust the dials on the side and the yoyo will play exactly the way you want from the second you take it out of the box.

From Julius
"The ability to make this yoyo play the way you want it to makes it a must have. Most of the time you have some sort of break in period or beakpads that require constant maintenance. The 401 takes the place of several yoyos you would normally buy to get different playability. The 401 is my one handed yoyo of choice, and is always in my pocket.