glass diffuser bottle designed for your own scents. The bottle is transparent, so the liquid inside is clearly visible. Please note that the package includes empty bottles only; no essential oils or perfumes are included. You can mix and match your favorite blends to meet your needs. Easy to install and use. The bottle comes with an adjustable lanyard for hanging, giving quick and effortless installation. It can be mounted on a rearview mirror without obstructing your view and without taking up much space, adding a touch of sophistication to your car interior. Simple filling and fragrance diffusion. The bottle includes a leak‑proof stopper. To fill, pull out the stopper and add your essential oils or perfume. Make a hole in the plastic stopper and attach the cap. Shake the bottle and let the oils soak into the cap; the scent will emanate from the cap for diffusion. Widely applicable and versatile. The diffuser bottle has a charming appearance suitable for hanging on the rearview mirror in a car, or used in other spaces such as a bedroom, office, kitchen, bathroom, toilet, closet, bookcase, table, or window sill to enhance the room ambiance.