Please note, there are a number of unscrupulous merchants out there selling knockoffs as described in the review.  Unless you buy from us at "Bonefolder" on Amazon (see other Amazon sellers links above) we can not guarantee the quality of the product.  There is a reason why a knock off is cheaper than the real thing!We make our bone folders from Teflon, a strong, non-contaminating and non-stick material, which means that adhesives, inks and paints will not stick to it.If you use a traditional bone folder made of bone or plastic, you know its tendency to get worn down, discolored, and stained with age; this leads to messy clean up or worse, contamination of your next project. This is not the case with a Teflon bone folder; it will only get smoother and shinier with age while making clean up a snap and best of all it won't leave a shiny mark when rubbed over your work.Size: 5 3/4" x 5/8" x 1/4"Some of the most common uses we have seen or heard about include:- pressing down folds,- burnishing- sticking layers- folding, creasing, & scoring paper & fabric- card making- handmade books- book repair & conservation- origami- ribbon curling- paper quilling (paper filigree)- burnishing transfers- tailoring- stained glass art- dimensional paint techniques- gift wrapping- removing pieces from moldsWe make many different styles / sizes of bone folders, you can find these here:http://www.bonefolder.com