ECOLLAR TECHNOLOGIES - CPAD-034 FOR BARKLESS PROWinged Extreme Ultra Barkless Comfort Pad Titanium wings Brass points. Must be used with extender sensor cap. 2 wings with a more aggressive design to reach the skin on dogs with long, thick dense fur. Developed for dogs with double coated fur. Not meant for dogs with single coated hair. Best if used by breeds with hair similar to: Akita, GSD, Husky, Labrador Retriever, Chow Chow, Samoyed, Bernese Mountain Dog, etc. Compatible with: BP 504 If you wish