Welcome to our store!This ball is made of a rubber core of a basketball and common felt of tennis ball， it's much thicker than a normally pet tennis ball. But if you doggie is very naught or fierce， please choose it discreetly.Genuine 24 Diameter Tennis Ball， Super thick!Use for signature or pet toy Othere Detail :1.We shipped within 24 hours 2.(1).USA、Great Britain、Germany、France need 4-12 business days usually， (2).Others need 7-25 business days.3.All products we delivered will be check out in our warehouse.4.Any questions can be fixed by contact with tickets. And we will solve them in 24hours.Happy Shopping!