Johnson's 10" professional carbonized bamboo T-bevel takes the guesswork out of angle duplication& eliminates the problems associated with analog readings &manual measurement transfer. It features a heavy-duty adjustable stainless steel blade that will never rust or corrode, as well as a carbonized bamboo handle with a routed hand grip &stainless steel edging. Its durable locking lever holds the blade securely in place to keep your work accurate when transferring angles.