FEATURES-Pinky rest giving you full grip-Stainless steel magazine spring-Super duty design-Uses existing magazine base plate PRODUCT SPECIFICATIONS: Dimension     1.10 X 1.95 X 6.55 Height     1.1000 Width     1.9500 Length     6.5500 TYPE/COLOR     MAGAZINE EXTENSION DEVICE SIZE/FINISH     GLOCK 43 MATERIAL     POLYMER OTHER FEATURES:     ADDS TWO ROUNDS TO FACTORY      MAGAZINES,      USES EXISTING MAGAZINE BASE      PLATE.