Durable and Sturdy The large safety pins are made of nickel-plated stainless steel, strong, rust-resistant and sturdy enough to be used with heavy materials. Apply to hard material The large safety pins are suitable for heavy materials such as wool, leather, canvas, vinyl and upholstery.Large SizeThe large safety pin is 4 inches in length, 0.59 inches in width, a handy tool for your crafting projects. crafts or for attaching small decorations to your clothes Versatile Use Large sturdy stainless steel safety pins are good for blankets, skirts, cardigan sweaters, mattresses, crafts, jewelry making, etc. Pack of 20 Safety PinsThere are 20 pieces for each pack of safety products, which is enough for the need, it can be used for school, studio, home, etc.Note: The data are all manual measurement, please allow 1-3cm error, due to the light and display difference, there will be some color difference, depending on the object physical received.