Boao Hanging Car Air Freshener Diffuser Bottles — 50-Set Black Square with Wooden Lids & Instruction Cards

Boao 50 Sets Hanging Car Air Freshener Diffuser Bottles with matching instruction cards are a ready-to-fill solution for creating personalized hanging car scents using your favorite essential oils or perfumes.

These kits combine lightweight empty diffuser bottles with double-sided instruction cards so you can quickly set up multiple hanging car air fresheners for personal use, gifts, events or resale. Each set contains 50 black square bottles and 50 2 x 3.54-inch printed cards that explain how to fill and use the wooden-top hanging diffusers. The bottles come with stoppers, adjustable cords and absorbent wooden lids designed to disperse fragrance over time.

How do I fill and hang these Boao car diffuser bottles?

Filling and hanging is straightforward: remove the wooden lid and stopper, pour in a small amount of your chosen essential oil or perfume (diluted if desired), replace the stopper and cap, then hang the bottle by its cord. The included instruction card provides step-by-step guidance and safety reminders so first-time users can install them confidently.

• Remove wooden cap and inner stopper before filling.
• Use a funnel or dropper to avoid spills.
• Tighten stopper and screw the wooden lid back on securely.
• Hang from rearview mirror or other vehicle anchor using the adjustable string.

What features control how long the scent lasts?

The combination of an absorbent wooden lid and the small glass bottle volume creates a slow-release effect so fragrance diffuses gradually instead of evaporating all at once. You can extend or shorten longevity by adjusting the concentration of oil you add and by occasionally re-saturating the wooden top.

• Wooden lid absorbs and slowly releases fragrance molecules.
• Smaller bottle volume concentrates the scent for steady diffusion.
• Add fewer drops for a milder scent, more for stronger aroma.
• Reapply oils every few days to weeks depending on intensity desired.

Are these bottles suitable for other uses besides cars?

Yes — while designed for vehicles, the empty diffuser bottles are versatile for closets, small rooms, gift packaging or event favors. The neat black square appearance and instruction cards also make them useful as packaged samples or bundled promotional items for stores and crafters.

• Use in closets, lockers, or small personal spaces.
• Include cards in gift boxes to guide recipients on use.
• Ideal for craft sellers who offer custom-scent product lines.
• Works as a sample bottle solution at events and markets.

What comes in the Boao 50-set and what should I expect in quality?

The set contains 50 empty hanging diffuser bottles with wooden lids, 50 inner stoppers and adjustable hanging strings, plus 50 double-sided 2 x 3.54 inch instruction cards printed in a clear black design. Expect consistent sizing and straightforward assembly; these are lightweight, reusable glass bottles intended for customary car fragrance use rather than medical or industrial applications.

• 50 black square glass bottles with wooden tops and inner stoppers.
• 50 adjustable hanging cords for easy placement.
• 50 double-sided instruction cards (2 x 3.54 inches) with filling steps and tips.
• Durable but lightweight materials for everyday vehicle use.

Who is this for: This Boao 50-set is for small business owners, event planners, craft sellers, car-detail services, or households that need a bulk supply of ready-to-fill hanging diffusers. It’s especially useful for anyone who wants a uniform, easy-to-use solution for distributing scented samples, creating customized car fragrances, or assembling sellable artisan products without sourcing bottles and instructional materials separately.