Franklin Sports outdoor X-40 pickleball balls (pack of 100) - Optic yellow (also blue and lime)Bulk pack of 100 X 40 pickleballs The X 40 is one of the best pickleballs made and is perfect for outdoor courts or indoor hard surfaces. It's super sturdy and can withstand hours of the most aggressive play on rough outdoor courts. These balls have precision machine drilled holes ensuring they have a superb flight path. Bult pack includes 100 X 40 outdoor pickleballs One piece construction Weight: 26 g Size: 74mm diameter Balanced flight pattern