Type:Plier Stapler Size:19.8 x 6.7 x 3.9cm / 7.8 x 2.6 x 1.5in Throat Depth:19 / 51 / 70mm (adjustable) Suit for Paper Size:A4/ A5/ A6/ B7 Material:Metal &Plastic Quantity of Hole:6 1.Adjustable spacing to suit with A4/ A5/ A6/ B7 paper for punching operation. 2.Punches up to 6 sheets with 5.5mm diameter holes. 3.Punched with 2 groups of 3 holes spaced 19mm and the distance .between two groups is 19/ 51/ 70mm (adjustable). 4.Plain pressing design for operating easily, non-slip base for punching stably. 5.A chip drawer on the base prevents the messy chippings spilling and maintains a clean working environment.