Denim Freedom No-pull Dog Harness Training Package with Leash Normally the delivery time is 8-15 days with tracking number via USPS internationally S size is suitable for 8 months Tactic, Chihuahua, Deerdog under 15 pounds M size is suitable for 3 months golden retriever,adult Tactic,Schnauzer Dog between 15-25 punds L size is suitable for golden retriever, Samoyed, Husky large dog Machine-washable in cold water on the gentle cycle