1. to improve dexterity skills,coordination and flexibility 2. for deep muscle penetration 3. relieves tension and relaxes muscles 4. strengthens hands and feet 5. ideal for self massage of the neck,shest ,arms ,legs, hands and feet and for practitioner applied message 6. material: pollution-free PVC 7. size:3,4,5,6,7,8, 24'', 28'', 32'' 8Weight: 25g~125g, 1000g, 1300g, 1500g or customerized by yourself 9.Standard: CE/EN71/ASTM/RoHS standard testing is welcome 10,Min-quantity: 10000 pcs