Wonder Rollers are a step up from our Cool and Big Rollers, in that they require NO release or lubricant when rolling out your clay! These rollers include hard end caps, great for storing your ultra clay pick, files, clay shapers and more when taking your tools on the go. Wonder Rollers come in some of your favorite colors to show your personal style or to even brighten up your work bench! Diameter: 1-5/8" Length: 7" OR 11"