Check the listing for details. POWERTEC Adjustable Sharpening Stone Holder - Whetstone Sharpener No-Slip Base. Color: Black, Condition: New. Listed at 38.99 USD. The Sharpening Stone Base Holder by POWERTEC. INCLUDES: (1) Sharpening Stone Whetstone HolderFUNCTION: Provides you with an easy-to-use jig tool designed to hold your individually sized sharpening stones firmly in place without sliding, thus eliminating movement and allows you to sharpen your knives (and blades) without unnecessary damageADJUSTABLE: Sink bridge stone holder features an inner sink pool range of 6-3/4” to 17-3/4” – Perfect for big kitchen sinks, table tops, workbenches and even granite countertops due to the non-marring, non-slip rubber grip profileVERSATILE: Capable of holding waterstones, whetstones, flattening stones, glass stones, diamond lapping plates and more. Possesses a sharpening stone mounted range of 3-1/4 inches to 14-1/4 inches in length for project versatilityPREMIUM BUILD: Made with highly durable 304 stainless steel for premium rust and corrosion resistance. The rubber sink bridge is equipped with molded plastic inserts to maximize the ergonomic 6-star knobs that are included for easy adjustments INCLUDES: (1) Sharpening Stone Whetstone HolderThis sink bridge whetstone holder provides you with a reliable and cost effective solution to keeping your sharpening stone mounted and firmly in place. It’s a quicker, easier and more practical way of setting up your sharpening station when you’re ready to revitalize your knives.With it’s wide range and versatile size, this stone holder eliminates the need of finding a bucket or tub stable enough to hold water (without moving) while your attempt to sharpen your beloved blades.Built to LastThis sharpening stone tool features a premium construction balanced and engineered with 304 stainless steel rods and solid rubber components. This impressive combination provides you with years of rust and corrosion resistance – Making it 100% safe to install over your kitchen sink or over other sensitive surfaces. The rubber vise pads/feet not only provide an non-slip profile needed when sharpening your knives, but their non-marring arrangement helps keep your surfaces clear from scrapes and scratches.Product DimensionsOverall Size: 19-7/8” x 5” x 2”Steel Rod: 5/16” diameterFeatures an impressive sink rage of 6-3/4” to 17-3/4”Holds a wide assortment of stones sized from 3-1/4” to 14-1/4” in length. POWERTEC is a professional manufacturer of high quality wood work accessories, sanding discs and an assortment of OEM replacement parts. We are committed to exceeding expectations, while bringing the latest innovations, technology, and product development to the industry. WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov