Nickel Radius. This is a holder for the Willard's Cue Tip Shaper. This make holding the tool much easier and less stress on your hands. It can also be placed on the floor so one can use their feet to hold it after installing a new tip to get the desired shape. This should be printed in TPU, as the material is more pliable than PLA, ABS, PETG, etc., so inserting and removing the tool is much easier to manipulate. This is small enough that it can easily slip in your pool case. The tool itself can be found on Amazon by searching for “Willard Cue Tip Shaper”. Every serious player should have one in their arsenal.