This is a fidget spinner model that you can 3d print. It has a unique oval shaped tip and custom finger pads that are curved to make the spinner easy to grip. These spinners are useful for kids with ADHD. The spinner is a way to help focus. I print these at 2mm and they look great. You will need 4 skate bearings to make this spinner work. They are easy and cheap to pick up on Amazon. Use pliers or a hammer to install the bearings. They should go in tight and stay there from friction. Be sure to print the finger pads upright with support material as the top of the finger pad is curved in. Printing the spinner with 100% is not necessary but does add a little weight to the model.

Layer height: 2mmSupports: yesSpeed: 50mm/s