The Ruffwear Knot-a-Collar is a unique approach to dog collars. The low-profile design provides a clean and elegant climbing-inspired solution for an everyday collar. The all-metal hardware keeps dogs secure. Reflective rope keeps dogs visible in low-light conditions. Round profile settles comfortably in short or long fur and reduces matting.Low-profile 7mm rope settles comfortably into furSliding fisherman knots are adjustable for a customized fitSingle-piece, anodized aluminum V-ring provides a secure leash attachment pointAnodized aluminum belay plate provides non-slip adjustmentSeparate ID attachment pointEasily add or remove tags with Quick RingReduced tag jingle with silicone tag silencerEnhanced visibility with integrated reflective trimMaterials:7 mm kernmantle rope with reflective trimAnodized aluminum V-ring and belay plateStainless steel Quick RingSilicone tag silencer