flash cards in teaching 350g

{"cid":"91178542","title":"250G 350G Black Core \/ Blue Core C2S Gloss Cardboard for Playing Scratch Card","imgUrl":"https:\/\/img.ismap.com\/nimg\/59\/03\/5ca6c38d55fa1dcfff27a40910c4-200x200-1.jpg","attrs":{"Price":"Negotiation","Brand Name":"BMPAPER","Model Number":"BM 554","Minimum Order Quantity":"1 metric ton","Delivery Time":"5-15 days","Certification":"SGS, ISO","Place of Origin":"CHINA","Payment Terms":"T\/T, Western Union, MoneyGram","Supply Ability":"500000 metric ton per month","Packaging Details":"sheets, rolls, ream","Paper Name":"C2S Gloss Cardboard","Coating":"Gloss coated","Material":"Virgin pulp","Usage":"Scratch Card, Playing card, etc","Size":"Custom size","Core":"Black Core \/ Blue Core"}}

{"cid":"91091321","title":"OPTO-EDU A59.2245 4K HDMI+WIFI+USB3.0+Net Digital Camera Mouse Measure","imgUrl":"https:\/\/img.ismap.com\/nimg\/bd\/71\/8e1cdda40fa57258486933012421-200x200-1.jpg","attrs":{"Price":"FOB $1~1000, Depend on Order Quantity","Brand Name":"CNOEC, OPTO-EDU","Model Number":"A59.2245","Minimum Order Quantity":"1 pc","Delivery Time":"5~20 Days","Certification":"CE|Rohs","Place of Origin":"China","Payment Terms":"T\/T, West Union, Paypal","Supply Ability":"5000 pcs\/ Month","Packaging Details":"Carton Packing, For Export Transportation","Applications":"Microscope","Output":"HDMI","product name":"Microscope Accessories","Senser":"CMOS","Compatible":"Windows XP\/Vista"}}