The Fretz MA-4 is a half-round mushroom stake for creating dramatic curves in large projects or strong curves in smaller projects. Fretz MA-Series anvils are made from 420 stainless steel with high polish working areas to prevent any accidental marring. Designed for use with Fretz H-101 and VH-101 Vise Holders (although shown with a holder in the picture, all holders are sold separately). Measures approximately 70mm in diameter. Made in Vietnam.