Black Steel O-Ring

A steel O-ring with a smooth black finish, sized for dog collars, leads, bag straps, harnesses and leatherwork. If you are building blacked-out gear, this ring keeps the hardware as dark as the strap - no shiny chrome to break the look.

Specifications:

• Material: Steel
• Finish: Black
• Available sizes: 12mm to 38mm inside diameter - 8 sizes, each with its exact inner diameter and ring thickness shown in the size picker
• Pack options: sold as singles, or save with 10, 25 and 50 packs - up to 20% off the single price
• Applications: pet collars and leads, bags, belts, straps and general repairs

Match the inside diameter to your strap width so the strap sits flat through the ring.

Please note: this range was refreshed in July 2026 - ring gauges changed slightly on some sizes (exact measurements are in the size picker), and 30mm is a discontinued size available only while stock lasts.