1.Pretty light aluminum alloy handle knife with anti-slip design. 2.Sharper and more durable alloy steel blades. 3.Snap-fitted top of the engraving knife, and the blade can be replaced by loosening the buckle. 4.Everything needed to print, maintain and clean up 3D Models. 5.Your knives always stay sharp with this 13 piece knife kit. 6.Package includes, 13 sharp blades, 3 handles and convenient storage case. 7.Great for 3D Print Clean-up & Arts and Crafts. 8.This kit has everything to make 3D printing easy and the printed results spectacular. Specifications: Material: Aluminum Color: silver Package list Knife*3 Blade *10