This set features aluminum U pins and curved pins with silicone coating, offering rust resistant durability for various sewing and projects The aluminum construction ensures easy handling while the silicone provide comfortable grip This set easily fit in sewing kits or travel bags for repairs The portable design makes it for tailors, travelers, or anyone needing emergencys fabric fixes Made with aluminum and silicone materials, these pins crafting Their sturdy construction resists wear for long time use across multiple projects Safe enhances with flexible aluminum that won ' t unexpectedly and silicone wrapped tips to prevents accidental pricks Perfect for supervised crafting activity requiring precaution The ergonomic U shape and curved designs reduce hand fatigues during daily use, making ideal for extended sewing supplies like quilt making or fabric craft Their unique shapes allow control in detailed work