Safe Scrape™ double-edged plastic blades. Sold in 25 blade blister pack – 4 packs total. Blister carded for retail sales. Orange Delrin® blades. 50 edges that won’t scratch or mar surfaces. Delrin® blades have natural lubricity, high rigidity, and mechanical strength. Long-term fatigue resistance when used in repeated impact and are highly resistant to moisture.