PetSafe Gentle Leader Quick Release Headcollar, Medium, Silver # 1 Recommended Headcollar endorsed by leading vets and trainers. Package includes Gentle Leader and training guide. Immediately controls pulling, lunging and jumping. Painless, humane, never chokes. Replacement Headcollar, DVD NOT included. For expecienced dog owners familiar with using a headcollar. Number 1 Recommended Headcollar endorsed by leading vets and trainers. Immediately controls pulling, lunging and jumping; Converts to a regular collar for greater flexibility; Painless, humane, never chokes; NOT a muzzle; Made from soft yet durable nylon webbing For medium breeds 25 to 60 pounds Headcollar Only; Instructional DVD NOT included. For expecienced dog owners familiar with using a headcollar. Replacement Headcollar, DVD NOT included. For expecienced dog owners familiar with using a headcollar.