PP material ,these square lid can seal well to allow the wet wipes to draw out, easy open. product: wet wipes lidcategory:injection productsize:119.5mmL*80mmW*6.2mmHdaily production:16000pcspacking :490x480x285mmdescription:PP materials sharped ,from the designing,developing to the finished products,all the processing made by ourselves. wet wipes lid/plastic lid/flip top lid