Steel Basting Pins: 300 Curved. Nickel-plated steel curved safety pins are easier to use than straight safety pins for quilt basting. The curved pin has just the perfect angle for easy penetration of quilt layers with no shifting. Size: 1: 1-1/16in. Packaged in a reusable clear plastic storage box: 3-1/8x4-7/8x1in. Imported.