how to use a shoe stretcher

{"title":"Bamboo Wood Nylon Adjustable Shoe Trees Stretcher Rack","imgUrl":"https:\/\/img.chinax.com\/nimg\/79\/54\/c7c3852102b28e7afa86a2075263-200x200-1.jpg","attrs":{"Price":"EXW USD 1.80-2.90\/set","Brand Name":"WOODSON","Model Number":"JJ-0961","Minimum Order Quantity":"1000pcs","Delivery Time":"25-35work days","Place of Origin":"China","Payment Terms":"T\/T","Supply Ability":"10000bottles\/day","Packaging Details":"500 pcs\/carton","Product name":"Shoe tree","Application":"Sneaker shoes prevents crease","Color":"Transparent, Black","Net Weight":"200g","OEM\/ODM":"Available","Feature":"Adjustable, durable","Shelf life":"5 Years"}}

{"title":"Low Power PLC Control Paper Pulp Tray Making Machine With Online Technical Support","imgUrl":"https:\/\/img.chinax.com\/nimg\/38\/39\/8bc29e0b24c03c9d381262334cda-200x200-1.jpg","attrs":{"Price":"6500usd-18000usd","Brand Name":"WANYOU","Model Number":"WY-1","Minimum Order Quantity":"1 set","Delivery Time":"depends","Place of Origin":"Jinan, Shandong","Packaging Details":"plastic films","Payment Terms":"TT","Supply Ability":"1set\/month","Forming molds Material":"Aluminum, Copper, ABS Plasic, Stainless Steel","Control System":"PLC","Voltage":"220V\/380V","Machine Speed":"6s\/cycle--11s\/cycle","Power":"Low","Warranty":"1 Year","After-sale Service":"Online Technical Support","Application":"Paper Pulp Molding"}}