The Klever X-Change has gotten a redesign, and the result is the Klever X-Change PLUS. Slimmed down, with its new lightweight, ergonomic magnesium handle; gone are the days of cramped hands from long hours using older safety knives. The Recessed Blade design not only keeps you safe, by keeping your fingers clear of danger, it also prevents unnecessary damage to the contents of a package its being used to open. For your convenience, the heads are interchangeable with other Klever X-Change blade heads, with no tools required to change them out.