Multi-function pin keeper: made from high-grade PVC rubber for strength and durability; designed for daily use and resistant to fading, providing reliable back support for pins. Daily use pin clutch: smooth opening and closing action; the replacement pin back stays securely in place and is safe to wear; suitable as a DIY accessory. Multipurpose pin and back: insert the pin into the rubber backing; provides a strong grip so pins stay pinned securely and do not loosen over time; features rubber pin backs. Pin back isolation and replacement: isolates metal pins to keep them in place; a reliable replacement for pin clutch backs and pin badge backs. Use scenarios: - Attach lapel pins, enamel pins, or badges to jackets, hats, or bags, with secure, cushioning rubber backs. - Ideal for DIY pin projects, crafts, cosplay badges, or custom designs needing dependable back support. - Replace worn or lost pin backs on clothing or accessories to restore security and prevent accidental detachment.