Naturally Effective Plant-Based Formula: Uses 100% plant-based insecticidal compounds as active ingredients, without DEET or pyrethroids. Helps protect dogs and cats from biting insects naturally, safely, and effectively. Built-in Lasting Protection: Made with non-allergenic soft thermoplastic rubber. Natural active ingredients are integrated into the collar material during manufacturing and slowly release over time, providing continuous protection for cats and dogs. Flexible & Adjustable to Fit All Pets: Designed to fit all sizes. With an adjustable length up to 25.59 inches (65 cm), it can be used on both dogs and cats of all ages and sizes, from kittens to large breeds. Simply fasten and trim any excess. Easy and Comfortable to Wear: Secure the collar around your pet’s neck, ensuring enough room for two fingers, then cut off any leftover length. Lightweight design ensures comfort with no added weight. All-Weather & Waterproof: The active ingredients are embedded in the material, making the collar resistant to rain, water, and all weather conditions. Performance remains effective during swimming, bathing, or outdoor play.