Wool Heart Felt Diffuser for Essential Oils in Car, Car Vent Clip Our Vent-Car Diffusers, are made with care using wool pompoms/shapes, cotton tassels, gold plated brass beads and vent clips made from metal and rubber. To use: Gently clip your oil diffuser onto your car vent and drop your favorite oil scent on the top of each wool sphere/shape and clip in car, closet or small space. 6-9 drops last approx. 1 week. As the smell begins to fade over the week, just add a few more drops, making this the perfect reusable accessory in your car! The felt balls are 100% Wool and is made from 100% beautiful felt wool made in Nepal. Please note that the size and color may vary a small degree depending on your computer monitor but I try my best to represent the colors accurately. These felt items are a handmade item and can vary slightly in size, color, and shape. Every diffuser is handmade with love and care in a smoke-free and pet-free space and approximately 1" wide. Pair with our specially formulated Fragrance oil. To care: Clean your diffuser with a drop of dish soap and a damp cotton ball or sponge. Please: Do not submerge diffuser in water. Remove diffuser from your vehicle if you are expecting extremely high temperatures. Please keep these diffusers out of the reach of children for safety. All Ways Nature products are not tested to be child safe and are meant to be decoration only rather than toys. There is a danger of choking, strangling, and suffocation. Purchase of our products means you understand these risks and absolve All Ways Nature, it's owner, and any affiliates from any liability.*