Simple protector for the Xtool D1 Pro button.  Don't know if it will also fit the D1 and D1 Pro V2.  I'm sure you can scale it to fit.  OD is 32mm and ID is 21mm.  Height can be scaled to whatever level of protection you want.  Provided in the model are 4mm, 6mm, and 8mm sizes.  Also, I provided a “normalized” version where the ID is 100mm, so if you want to protect some other button, you just scale the size in % to match the diameter of your button in millimeters.  I.e. if you want to make one for a 37mm button, just set the scale to 37%.