... is good for inside of cars (sunglass,glasses box,radar sensor,cellular phone....) And 3C (Mouse,pda,Disc...)Avoiding use on paper ... ,it may occur damage to paper when you put the anti-slip pad onPls use ... for DE: 36*23*29CM/420PCS GW/NW: 14/13KGS Super-sticky Anti-Slip Mat,Mobile anti-slip mat,anti-slipping mat,PU anti-slip mat ,car anti-slip mat ...