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20g PU ball: the best softness. The best elasticity and the fastest rebound speed. Suitable for vocational training or children's play. 65g tennis ball: average softness. Moderate elasticity and average rebound speed.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.