Look closely at the design and you may see the four leaves of a good luck clover. Known as the Celtic Quatrefoil, this design is an emblem of Irish spirit worldwide. Bring the “luck of the Irish” to your next design. With a generous shank, it will easily fit 2.0mm leather. Made in America by TierraCast® using metal which is both lead and nickel-free, these buttons are hypo-allergenic.