NEW - modern style cas-cas percussion balls. Made from high density plastic these are pretty indestructible. PAIR (TWO ROPES OF TWO) CAS-CAS. Nice loud resonant sound. Easy to hold with adjustable cords for different sized hands. Standard strings are around 10-11cm between so fine for most hands. Colour of cord may vary. Shakers approx. 45mm dia. Fill weight - approx. 7g per ball.