This small scraper features spring-loaded auto-retraction so you can't accidentally leave the blade exposed. To avoid excess strain on thumb and wrist joints from scraping resistance, Slice® invented SureScrape, which absorbs kickback force so you don't have to. No other manufacturer offers a comparable ergonomic advantage. The SPG10590 ships with a rounded-tip SPG10524 blade and is compatible with SPG10523 (serrated) and SPG10525 (pointed-tip) Slice blades.