Product Specifications:
Material: Aluminium Alloy
Cylindrical Clip Size: 81mm*13mm (3.2 in* 0.51 in)
Stick Size: 70mm* 7mm( 2.8 in*0.28 in)
Each Clip Weight: 17g
Total Weight：80g

Package Included:
3 * Cylindrical car vent clip
18 * Refill sticks (no scent)
1 * Blue linen bag
NO ESSENTIAL OIL INCLUDE.

How to Use the Aroma Car Diffuser Vent Clip:
1. Twist off the lid marked with white dot clockwise and pull out the stick container.
2. Add essential oil to the refill stick and insert the stick to the container.
3. Insert the stick container back into the cylindrical case and press gently until it's closed completely.

Note:
The refill sticks have NO SCENT , so you need to add essential oil or perfume on them yourself.
How long will the aroma last depends on how many essential oil drops you put on the felt stick and what type of oils you use.