These Magic Clips have precise markings in 1/4" increments, and assure precise sewing every time. Opens wide & lays flat for easy use. No need to remove clip when sewing. Made with surgical grade stainless steel. Details: 2.375" x 0.69" (60.3mm x 17.5mm) approximate clip size Precise markings in 1/4" (6.35 mm) increments Includes 6 pieces Stainless steel