19mm

{"cid":"125557","pid":"22879482","pimg_url":"\/\/img1.tradegrowthhub.com\/cc\/69\/37f85465d715\/product\/77603649_s-w400xh400.jpg","name":"Stainless Copper Plating\/\/Aluminum Oxide 19mm With Indicator High Decibel High Volume Buzzer","attrs":{"Price":"$3.80(40 - 499 Pieces) $3.50(500 - 999 Pieces) $3.20(>=1000 Pieces)","MOQ":"40 Pieces","Delivery Time":"Negotiable","Brand":"WANDU, WANDU"}}

{"cid":"125557","pid":"22879474","pimg_url":"\/\/img1.tradegrowthhub.com\/cc\/69\/37f85465d715\/product\/77603568_s-w400xh400.jpg","name":"Stainless Copper Plating\/\/Aluminum Oxide 19mm With Indicator High Decibel High Volume Buzzer","attrs":{"Price":"$3.60(2 - 99 Pieces) $3.30(100 - 999 Pieces) $3.00(>=1000 Pieces)","MOQ":"2 Pieces","Delivery Time":"Negotiable","Brand":"WANDU"}}