we use the doulbe fish balls for practie in my club in china. it is a very reliable practice ball that does not cost you lots of money. these balls will last a very very long time. i guess based on we play maybe 8 hrs each day 7 days a week in china they last each for 1 month before they deform or have cracks in them. if you play without knowing the ball, you would think it is a very high quality ball like a 3 star ball. it does not feel like practice balls at all. these are best for club practices or serving practice. if you are looking for practice ball, these are great choice.
