The speed mark is built to perform and last. This ergonomically designed 12' speed mark tape can complete any job. This durable tape by Komelon was manufactured for a reason-- for daily use by professionals and to deliver when put to the test. The speed mark has Komelon's nylon coated speed mark blade. The speed mark is printed with fractional graduations and stopped and locked with a powerful slide lock. This tape screams quality and will deliver value.