Dimension:
Dimension: - 20-inch overall length and 2.5-mm link diameter, adjustable from 15.5" to 18".
- 22-inch overall length and 3-mm link diameter, adjustable from 17.5" to 20".
- 24-inch overall length and 3.5-mm link diameter, adjustable from 19" to 21.5".
It is recommended to use 2.5mm for 5KG-20KG. Because of the measurement have 1-3cm error.
About the dog chain collar.