3/4″ wide collar fits all Educator 300, 400, 500 and 900 series training collar receivers; all other models require 1″ wide collar
33 inch collar for small to medium size dogs 10 pounds and up with neck diameter between 11-1/2 and 24 inches; can be trimmed to custom length with scissors
For extra small dogs 5 pounds and up, we recommend the 3/4 x 22 inch mini double bungee collar
High quality Biothane material provides unmatched durability and will not fray, is waterproof and odorproof, easy to clean, perfect for outdoors and active dogs