In the tradition of the original Player's Nails, these are clear ping pong balls. For years guitarists have used ping pong balls for nails. The problem is that when you add pigment, as they do with white and colored ping pong balls, they get mushy. In addition, you can't see what's going on under the nail, which is very important. We highly recommend that you spray this material with a bit of nail glue dryer before application. Very easy to work with. Apply these correctly and you'll have great tone and feel.