What's Inside...?
jesusredeemedme2425
April 20th, 2024
Find some pics and show us the inner workings of things! Here's an example <3
Tennis balls are made of a rubber core covered in felt and filled with air or nitrogen. The felt is made from a mixture of wool, cotton, and nylon that reduces aerodynamic drag and improves flight properties. The balls are then pressurized to increase their bounce.
