FOR USE WITH OURFRESH DISPENSER SOLD SEPARATELY, FreshFan Technology: Using a small, high-velocity fan, ourfresh will distribute fragrance using 5-10 times more power than other dispensers. Dry Fragrance Technology: ourfresh dry fragrance inserts release just the right amount of scent to keep your world fresh and clean without fragrance overload, nasal fatigue, and aerosol residue. Versatile Design: Crafted with style in mind, ourfresh's compact design allows it to be sleek and discreet with motion activated release to keep your world clean and fresh. 100% Recyclable: As part of Fresh Product's Eco-Refresh Program, ourfresh refills are 100% recyclable. Technical Specifications: 4"L x 0.86"W x 4.42"H. Weight: 72 grams. Battery included with each refill ourfresh dispenser sold separately - dispenser needed to utilize the refills