Martingale Dog Collar Size Chart
| Collar | Neck (cm) | Neck (inches) | Collar Width (cm) | Collar Width (inches) |
| Martingale Dog Collar | 23 - 25 cm | 9" - 10" | 2.5 cm, 4 cm or 5 cm | 1", 1.5" or 2" |
| Martingale Dog Collar | 25 - 30 cm | 10" - 12" | 2.5 cm, 4 cm or 5 cm | 1", 1.5" or 2" |
| Martingale Dog Collar | 30 - 35 cm | 12" - 14" | 2.5 cm, 4 cm or 5 cm | 1", 1.5" or 2" |
| Martingale Dog Collar | 35 - 40 cm | 14" - 16" | 2.5 cm, 4 cm or 5 cm | 1", 1.5" or 2" |
| Martingale Dog Collar | 40 - 45 cm | 16" - 18" | 2.5 cm, 4 cm or 5 cm | 1", 1.5" or 2" |
| Martingale Dog Collar | 45 - 50 cm | 18" - 20" | 2.5 cm, 4 cm or 5 cm | 1", 1.5" or 2" |
All sizes are approximate.