MLY-15006: 19mm Borosilicate glass balls, Silicone sleeve: L105*D19mm, weight about 38g/pc
MLY-19008:L145mm, 25mm Borosilicate glass balls, silicone sleeve, 2pcs balls per set, 17.5g/ball, total about 50g
MLY-15027: L150mm, 30mm Borosilicate glass balls, silicone sleeve, 2pcs balls per set, 35g/ball, total about 87g