Strong steel casing.8 Snap-off 9mm blades.Refill pack contains 10 blades (Sold separately, CK1011).Useful tool for safely snapping off blades included on end of knife. 

Treeline 160mm Large Plastic Cutter With Metal Sleeve - Box-12

Treeline 145mm Small Metal Cutters Carded - Box-12

Treeline 18mm Large Cutter Blades - Tube

Treeline 9mm Small Cutter Blades - Tube