Bulk Packaged. Excel K2 Replacement Safety Cap. These safety caps fit: Excel 16002 K2 Knife Handle; Excel 16005 K5 Red Plastic Knife Handle; Excel 16006 K6 Aluminum Knife Handle; X-ACTO X3002 No 2 Knife Handle; X-ACTO X3202 No 2 Knife Handle; X-ACTO X3602 No 2 Knife Handle; X-ACTO X3205 Red Plastic Knife Handle; X-ACTO X3206 Aluminum Knife Handle; and Fiskars 12-6711 Heavy Duty Craft Knife.