Bought these as I build model kits and need knives to cut and trim the plastic. These hobby knives are great and work well. The blade holding check is made of metal, not plastic like dollar store ones. Feel solid. Cut well. Blade guard on each handle stops the round handle from rolling around. Good amount of spare blades. Comes in a sealed plastic bag. I got a pencil case from a dollar store and store them all in it, always on hand to use. Enough blades to last a while.