The Tanfoglio Stock II pistol magazine base has an extremely high gripping force that makes handling much safety and more precise. The bottom of the pad is covered with a special non-slip material and the sides are serrated for maximum grip. This is very important in dynamic sport shooting where shooters have to change the magazine quickly and accurately. Compatible with Tanfoglio and Mec-Gar magazines Made in Europe from a solid piece of aircraft grade aluminum. The price is for a charger base.