Crafted from metal, these 20pieces sewing clips securely hold fabric in place during quilting and hemming, features built in 3inch measuring guide for precisely alignment in sewing project Each heavy duty hemming clip combines rustproof and break resistant construction with functionality, acting as both fabric sweing clamp and quilting measurement ruler tool while maintaining smoothly edges to fabric snagging Ideal for sewing enthusiasts, professional tailors, and anyone working on garments, home decoraiton, or intricate patchwork requiring millimeter perfect stitching accuracy Perfect for stabilizing multiple fabric layers during machine sewing, organizing craft stations, or marking seam allowances in scrapbooking and upholstery project The reinforced spring mechanism ensures long time grip strength without distortion, making these metal hemming clip essential sewing aid for repetitive use in workshop and hobby rooms