Razor Renew Traditional is for the serious razor blade, knife enthusiast. The buffed cow leather side maintains an optimally smooth and sharp blade - much better than an old fashioned leather strap. Razor Renew Traditional has a U.S. Patent that sharpens and smoothes your razor blades. You will finally get the number of shaves you should out of your expensive razor blade. Razor Renew Long extends the usable life razor blades by sharpening and smoothing the blade. Get 6 - 10 times the shaves you are getting now. The hair you shave is tough on your blade - it rolls the metal up dulling the blade, and your hair also creates tiny micro-burrs and scratches in the metal of the blade causing the blade to pull and scratch your skin. The sued leather side sharpens the razor blade by rolling the metal back into place and the smooth, buffed leather side lays all the micro-burrs and scratches flat - the result is a smooth, comfortable shave over and over again. You can expect 6 - 10 times more shaves from you expensive razor blade. Razor Renew Long has a usable body of 1.5" x 20.0", full length of the entire strap is 1.5" X 30.0"and comes with a piece of Velcro that is 8" x.5". Razor Renew Traditional is recommended for all straight razors, knives and scissors. With razor blades it is recommended to be used with 2 - 6 blade razors that are more than $1.00 a piece. Is not effective on the ladies razors that have bars of soap on them.