5 three ball game 3000-5000-4.2 yuan/a diameter of 42.7 MM to 42.7 MM weight 45.7 grams, 85% spandex inner rubber layer elastomer, outer dupont sarin, 5000-10000, 4.9 yuan/a 10000 more than 3.9 yuan/a three layer ball game 6, 3000-5000-5.9 yuan/a diameter of 42.7 MM to 42.7 MM weight 45.7 grams, 86% spandex inner layer rubber, rubber outer dupont sarin 5.8 5000-10000 yuan/a 10000 more than 5.7 yuan/a