pain in lower left back

{"cid":"91213998","title":"Electric Therapy Massager Back Stretching Device Massager For Bed Lower And Upper Pain Relief","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/51\/b1\/f5ac3ab8d82ac6b66b9d403c31a8-200x200-1.jpg","attrs":{"Price":"$2.38\/pieces 50-4999 pieces","Brand Name":"GUANXIONG","Model Number":"XY-ZCB02, XY-ZCB02","Minimum Order Quantity":"50 pieces","Delivery Time":"3-15 work days","Place of Origin":"Jiangsu, China","Packaging Details":"Product net weight: 1KG
Packing quantity: 20pcs\/carton (Color box)","Certification":"CE","Payment Terms":"L\/C, T\/T","Supply Ability":"10000 Piece\/Pieces per Day","Function":"Other","Application":"Waist, NECK, Massage the back, lumbar spine orthosis","After-sale Service":"Online technical support","Product name":"Lumbar massager","Warranty":"1year","Instrument classification":"Class I","Net Weight":"0.5kg","Material":"PP+NBR","Service":"OEM","MOQ":"50pcs","Color":"blue+purple"}}

{"cid":"91201844","title":"32CM Yoga And Foam Column Roller Rolling For Lower Back Pain Rehabilitation Exercises","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/b9\/27\/45c83313870ba6e8709255402489-200x200-1.jpg","attrs":{"Price":"$3.44\/Pieces 100-999 Pieces","Brand Name":"Mily Sport","Model Number":"ML-10102, ML-10102","Minimum Order Quantity":"100 Pieces","Delivery Time":"5-15 work days","Place of Origin":"Jiangsu Province,China","Packaging Details":"Shrink film and then carton","Payment Terms":"L\/C, T\/T, Western Union, MoneyGram","Supply Ability":"100000pcs\/month","Product name":"Yoga foam roller","Color":"Silver, black .ect","Size":"32*14cm","Single package size:":"72X30X34 cm","Single gross weigh":"1.7 kg","Package":"OPP+carton","Sample":"Available","Logo":"Customized logo available"}}