clip on nd filter for smartphone

{"cid":"91225647","title":"ND2-400 Smartphone ND Filter Clip 52mm Clip On ND Filter For Smartphone","imgUrl":"https:\/\/img.chinax.com\/nimg\/21\/77\/cfac695fbcc356463c568058c969-200x200-1.jpg","attrs":{"Price":"$20.80","Model Number":"Phone52_VND240-2","Minimum Order Quantity":"100","Material (frame)":"Aluminum Alloy \/ Ti \/ Cu \/ Brass","Coating":"Double-sided AR and AF Nano Coating","Place of Origin":"Guangdong, China","Filter type":"ND FILTER","Material (glass)":"AG glass \/ Schott Glass B270","ND value":"ND2-400","Light reduction":"1-9 stops","Diameter":"52mm"}}