The PARA'KITO Refillable Mosquito Repellent Clip comes with 2 refills included. It provides a constant protection up to 15 days per refill and diffuses a blend of 7 natural essential oils. Attach it to your bag, pack, belt or other gear.Directions for use: 1. Insert the pellet into the Clip 2. Attach it on your bag, pack, belt and other gear or keep it nearby. A single refill pellet fits safe and snug in the mesh pocket on the outside of the Wristband & Clip. As the natural oils' active ingredients are released into the air around you, they help to mask the scents of your breath and body, making it harder for mosquitoes to find you. Super simple, super effective!