os feets do meu deathadder v2 mini estão ruins !

The feets of my Deathadder V2 mini are gliding well with less than 5 months of use, I would like to know if there is any protective plastic on the feets that comes from the factory or a solution because I use the mouse little, I only use it for research, the feets are also lifting as I use it and this is damaging my mousepad !