Olfa Utility Knife: Retractable - Plastic Handle, Olfa SKB-7/10B (MSC #73995664) Replacement Blade | Part #1077174

OLFA Self-Retracting Safety Utility Knife (SK-4) - Multi-Purpose Semi

OLFA SKB-16/10, blades for SK-16, Stainless steel

Olfa SK-7 Safety Knife, Model 1077174

OLFA Self Retracting Safety Utility Knife (SK-14) - Multi-Purpose

SKB-10 - Olfa SK-10 Replacement Blades, Olfa 1096855 Blades

OLFA SKB-10/10B – Olfa-olfa

MSC Industrial Supply

OLFA Self-Retracting Safety Utility Knife (SK-4) - Multi-Purpose Semi-Auto Box Cutter w/ Self Retractable Blade & Non Slip Handle, Replacement Blades: OLFA SKB-2, SKB-2S, RSKB, & HOB Safety Blades - Utility Knives

OLFA 18mm Heavy-Duty Ultra-Sharp Snap Off Replacement Blades