Reusable: These deodorizer balls can provide a long-lasting clean fragrance. It can be used repeatedly and will last up to 2 months. Easy to Use: Simply twist the ball to release the fresh scent, place it in your targeted area and leave it for a few hours. Once you are done using it, twist it again to close. Store it safely and use as often as you need. Multi-Purpose: These deodorizers can also be used to freshen up your cars, school lockers, gym bags, home closets, office cabinets and linen drawers. Compact and Lightweight: The round design makes it easy to place and carry. Each pack comes with 8 balls with a diameter of 3.9 cm. Effectively Removes Odors: These high-quality deodorizing balls will effectively eliminate unwanted odors of footwear. It is great for sneakers, golf shoes, boots, school shoes, cleats, tennis shoes and children's shoes.