Factory Direct sales !! OEM acceptable!!! Item name: peanut massage ball Product description: Material: natural rubber Product size: 140*66mm Prodcut weight: 390g Packing details: 45pcs/carton. carton size:37*29*21CM Carton weight: 18/18.5KG Use imported nature rubber material, not too soft ,not so hard ,the hardness is just good as it shows. perfect use for muscle release or relax , especially with heat on it