Fits all Educator 300, 400, 500 and 900 series training collar receivers, as well as Bark-less Pro model 504 High quality Biothane material provides
Biothane Waterproof Collar - X-Small (9 to 12 inches) — Dogline
Dogline Biothane Waterproof Dog Collar with Quick Release Buckle
Waterproof BioThane® Quick Release Buckle Dog Collar
Biothane Waterproof Collar - X-Small (9 to 12 inches) — Dogline
Leather Alternative Waterproof Dog Collar - Personalized & Handmade
Waterproof BioThane® Quick Release Buckle Dog Collar
Waterproof Biothane Dog Collars
Waterproof Biothane Dog Collars
Waterproof BioThane® Quick Release Buckle Dog Collar
Biothane Harness - UK
Biothane Waterproof Collar - X-Small (9 to 12 inches) — Dogline
Waterproof BioThane® Quick Release Buckle Dog Collar
Educator Biothane Dog Collar, Waterproof, Odorproof
Educator Biothane Dog Collar, Waterproof, Odorproof