Using health pigment, safety and . The pads are reusable after washing. They have liquid absorption and permeability. To keep absorbing essential oil, lead the travelled through pads and bring fragrance out. To prevent swallow and blocking the airway. Please stay from children and pets. It has liquid absorption and permeability. To keep absorbing essential oil, lead the travelled through pads and bring fragrance out. colour: Random Color(White + yellow + black +blue+ + light green + purple + orange + gray + red +ice blue +green, can not color) Material: Felt size: Diameter: 22mm thickness: 3mm Package Contents: 48x mat Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm. Product Notes: Please allow a little manual errors.Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please confirm acceptance before ordering. About Shipping: Please ensure your shipping informations are correct to avoid delivery issues. All orders are shipped within 3 days after payment. Delivery usually takes 8–12 days, The specific delivery time is depend on circumstances. If you have any questions during your purchase, feel free to contact us. We will respond you within 24 hours.