What you receive: This package includes 6 catalytic wick replacements in 2 colors (silver and gold), with 3 pieces of each color. The sufficient quantity provides replacements for air-controlled catalytic burner wicks. Harmless and strong: These oil lamp wicks are made from a mixture of various clay materials, forming a precise ceramic structure. The outer ring is made of metal, which helps maintain the wick's shape and provides added durability. Good oil absorption: The well-woven wick offers strong oil absorption and can be used with aromatherapy bottles and essential oils for efficient and fine diffusion. Please note that aromatherapy bottles and essential oils are not included. Size information: The ceramic diameter is 0.71 inches (18 mm), suitable for most catalytic burners. When purchasing, please ensure the mouth diameter of your aromatherapy bottle matches the catalytic burner. Practical usage: After the wick absorbs essential oil through the cotton core, it diffuses the oil via surface adhesion through its porous structure. This catalytic burner wick is commonly used as an aromatherapy accessory to help disperse fragrance and purify the air, enhancing the ambiance of your space. Color: Gold, Silver, Creamy white Material: Cotton thread, metal, clay Package Contents: 6 x Replacement Oil Lamp Wick Only the above items are included; other products are not part of this package. Note: Lighting and display differences may cause slight variations between the image and actual item. Measurement error allowance is +/- 1-3 cm.