25 foot Tape Measure. Self Lock Evolution, Nylon Coated Steel Blade. 25 feet by 1 inch. Self locking blade, High visibility blade color, Dual end hook and two sided printing.The Komelon Self Lock Evolution is the latest upgrade to our #1 selling Self Lock series. This 25' x 1" tape features our new High Visibility blade color with the ever popular and much asked for dual end hook and two sided printing. A new case design and these features teamed with our self-locking function have evolved into our most innovative tape to date.