The Katz-Moses Universal No Deflection Stop Block has: ZERO DEFLECTION (no other stop block on the market can say the same) Can be 2.25-3.75” tall with positive stops every 1/2” Has a 1” micro-adjust feature. Don’t worry about having to reset your stop block. Use the micro adjust feature to sneak up on a cut. Can extend from the fence 1.5 inches or be snug up against it at 1/4” depending on the size of your stock Can be used in the vertical or horizontal position depending on whether your t-track in on the top or face of your fence When not in use it stores, out of the way, behind your fence. Other stop blocks flip up which can get in the way or come crashing down denting your stock. Version 2.0.1 has a matte anti slip coating This is very high quality product that is made in the USA