Ruffwear - Timberline Durable, Water-Resistant Leather Dog Collar Handcrafted Strong, durable, water-resistant and sustainably produced full-grain cowhide leather stands the test of time Single-piece, anodized aluminum Crux Buckle offers durability and security in an efficient design Single-piece, anodized aluminum D-ring provides a secure leash attachment point Fits dog neck 11-14 Inch