This works great. I see women using them so I felt a little girly wearing and using this. But hey lets be real...Im playing tennis so I think Ive already lost some man points. Anyway I have tons of shorts that dont have pockets and often play on a whim and dont have time to change. I keep this in my bag and clip it on. Holds the ball well. Stays on well. If i have really thin shorts and it will sometimes become unclipped when im out of position and flailing for a ball. That only with thin shorts though never comes off with the thicker ones. It also makes hitting a terrible 1st serve a little easier cause its fun to quickly pull a ball out of the clip. Id recommend this to anyone playing tennis that has no pockets! Who wouldn't put their balls in a love cup?

Works well and cheap to hold 2nd tennis ball.

si lo quieres poner en un pants ó short con elástico , se mueve mucho cuando estas jugando , tendía que ser en un pantaón en donde la orilla del cinto sea rígida

I bought this to hold my dogs ball whilst running with her. Works amazingly well, holds the ball very securely and stays on my waist band. Brilliant for making a hands free run when with my dog.

Seems to have the right balance of grip to adequately hold ball without making it difficult to retrieve during play.