potentiometer knob with pointer circular hole

{"cid":"91220106","title":"KN15-Y-6 Potentiometer Knob Bakelite Radio Knobs With Pointer Circular Hole Top Screw Fixation","imgUrl":"https:\/\/img.chinax.com\/nimg\/0a\/99\/e6ff687a23828084c0bfbf229b53-200x200-1.jpg","attrs":{"Brand Name":"BONENS","Model Number":"Knob","Place of Origin":"Sichuan, China","name":"Plastic knob cap","model":"KN21-Y","Shell material":"plastic","Inner hole material":"copper core","diameter":"21mm","height":"21mm","Shaft diameter":"6mm","colour":"Red\/Yellow\/Blue\/Green","Fixed form":"Top screw fixation","packing":"100 pieces\/box","Packaging Details":"Carton packaging"}}

{"cid":"91093552","title":"WX14-12 3w Single-turn Wire-wound Rv12mm Rotary Potentiometer","imgUrl":"https:\/\/img.chinax.com\/nimg\/01\/31\/cef4b99f316968afe518db893385-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"Uchi","Model Number":"WX14-12","Minimum Order Quantity":"100pcs","Certification":"SMC","Place of Origin":"Dongguan\uff0cGuangdong,China","Payment Terms":"T\/T\uff0cpaypal\uff0c Western Union,MoneyGram","Supply Ability":"50000000pcs per Month","Rated power":"3w","Resistance":"1\u03a9~22K\u03a9","Resistance Tolerance":"\u00b15%,\u00b110%","Size \/ Dimension":"24*35mm","SHAFT DIAMETER":"6mm","Number of Turns":"1Turn","Rotational Life (no load) Cycles":"10000","Angle of rotation":"300\u00b0"}}