One set of weighted balls (30g and 40g). One single ball holder with retrieval loop. Wrapped in body safe silicone.Size: 1.75 x 9 / 4.5cm x 22.75 (overall) 1.75 / 4.5cm (large ball diameter) 1.5 / 3.75cm (medium ball diameter) 1.25 / 3.25cm (small ball diameter)