roller ball for back pain gym

{"cid":"91196485","title":"Gym Fitness Yoga Foam Roller Peanut Ball Set Pilates Block Peanut Massage Roller Ball","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/2a\/57\/7b6ce3886c88af691b955a5b5f9d-200x200-1.jpg","attrs":{"Name":"Foam Roller \/ Massage Ball","Ball Material":"High-density EPP","Roller Size":"45*14cm","Color":"Blue | Purple | Pink | Green | Black | Orange","Style":"Massage roller, pilates foam rolle","Suit for":"Adult"}}

{"cid":"91155001","title":"Virson home gym exercise magnetic Foot and Hand Recovery plastic foot massage roller for muscles","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/ea\/1f\/bf6e5e553f5e21acb6016bce9811-200x200-1.jpg","attrs":{"Price":"USD3.4-8\/PCS","Brand Name":"VIRSON","Minimum Order Quantity":"200PCS","Delivery Time":"Sample 5-8 working days","Place of Origin":"CHINA","Payment Terms":"L\/C, T\/T, Western Union, MoneyGram.Paypal","Supply Ability":"100000pcs\/month","Packaging Details":"color box","Name":"Massage roller","Material":"TPE\/PU","Size":"6.5x16.5cm","Weight":"300g","Usage":"Foot.Arm.Hand","Logo":"Customized Logo Availabled","Color":"Customized color Availabled","Package":"color box","MOQ":"200PCS"}}