Size Chart - Spike Leather Collar
| Size | Neck |
| XS | Size 20 - 27cm, Width 2cm (8" - 10 1/2", Width 7/8") |
| S | Size 27 - 35cm, Width 2cm (10 1/2" - 13 3/4", Width 7/8") |
| M | Size 35 - 44cm, Width 2cm (13 3/4" - 17 1/4", Width 7/8") |
| L | Size 44 - 53cm, Width 2cm (17 1/4" - 20 3/4", Width 7/8") |
| XL | Size 53 - 63cm, Width 2cm (20 3/4" - 24 3/4", Width 7/8") |