Collar Size 11mm - Small, R54.0016mm - Medium, R60.0020mm - Large, R88.0025mm - X-Large, R96.0040mm- XX- Large, R159.00 Colour BlackBlueOrangePinkRed R54.00 Rogs Slide Release Collar - Reflective Product Category: Collar-HarnessBrand Name: RogzDescription: Small (11mm wide, 21-32cm), Medium (16mm wide: 27-40cm), Large (20mm wide: 35-56cm), XL (25mm wide: 43-70cm), XXL (40mm wide, 50-80cm) Recommended Products Rogz Fixed Lead Reflective R82 Rogz H - Harness Reflective R96 Rogz Utility slide Release Collar R39