※ Also listed on Yahoo! Flea Market (anonymous shipping) [Pet Medicinal Flea Collar Dog Natural Medicinal Flea & Tick Prevention Collar Mosquito Repellent Antibacterial] ★ Long-lasting and continuous protection Prevents flea and tick infestations. Effective for 7 months under normal conditions. ★ Safety Environmentally friendly and safe. Maintains pet health with a 100% natural formula containing plant-based ingredients, zero toxic chemicals. ★ Adjustable size and easy to use Collar length is 25.6" (65 cm) Waterproof, allowing for washing. Hygienic. ◼︎ Overseas product.