
Includes 3 pieces: 10" or 25 cm contour, a 5" and a tape measure. The contour tooth is approximately 0.07 inch or 1.8 mm, a sufficient resolution for most home projects. Although it doesn't have a tooth locking mechanism, it works by friction to lock the mold and works well. I would tighten the two screws on either end to increase friction and maintain contour. I think it's easier than the locking mechanism which is usually cumbersome and can change the contour of the hair when you lock it. I'm happy with it as it helped me a lot with tiling in my laundry room.

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