AMACO-Flexible PolyBlade. A flexible cutting blade designed specifically for use with polymer clay. It features stainless steel composition and resists oxidization so it will last two to three times longer than other blades. It's flexibility allows you to make curved cuts. This package contains one 6x3/4x5/8in Flexible PolyBlade. Caution: Contains functional sharp edge. Handle with care. Imported.