Function: Remove odor, remove formaldehyde material: metal Shape: round Shell size: diameter ≈81mm, thickness ≈23mm Main ingredients: French spices installation steps: 01. Peel off the base glue and stick firmly 02.Unscrew the base counterclockwise. 03. Add Aromatherapy Tablets 04. Replace the cover and the installation is complete. Replenishment method: 01. Unscrew the aroma cover counterclockwise to reveal the aroma sheet 02. Drop the essential oil on the fragrance tablet, wait for absorption, and recycle. How to use: Take an appropriate amount and drop it on the fragrance sheet. Note: Only applicable to incense tablets, please do not contact with other substances, please keep away from fire sources, and avoid children To avoid) L children eat by mistake, avoid using in eyes, mouth.