Each KIT contains all parts needed to make your own knife including handles, blade(s), liners, bolsters, backsprings, pins, etc. Some materials and tools YOU may need to supply include epoxy, sandpaper, masking tape, drill, drill bits, hammer, files, etc. Each kit comes with detailed assembly instructions. The RRCS4 KIT makes a 3 1/2" closed lockback folder with a 2 3/4" stainless steel clip blade and brown rich grain wood handles. Now pay attention....YOU build this knife...and YOU may need to supply some of the materials and tools.....we supply the all the knife parts required. Imported.