What you receive: 6 pieces of catalytic wick replacements in 2 colors (silver and golden), with 3 pieces per color, providing sufficient quantity for replacement needs for air-controlled catalytic burner wicks Harmless and strong: the wick is made of a mixture of clay materials, forming a precise ceramic structure; the outer ring is made of metal, which helps maintain the wick's shape and provides added protection Good oil absorption: the well-woven wick offers strong oil absorption and can be used with aromatherapy bottles and essential oils to efficiently diffuse fragrance, helping to freshen the air in your room; 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 aroma lamps; please verify that the mouth diameter of your aromatherapy bottle matches the burner diameter before purchase Practical usage: after the essential oil is absorbed by the wicks core, it adheres through capillary action; this catalytic burner wick is commonly used as an aromatherapy accessory to disperse fragrance and help purify the air, enhancing the ambiance of your space Color: Gold, Silver, Creamy white Material: cotton thread, metal, clay Package Contents: 6 x Replacement Fragrance Oil Lamp Wick Only the above package content is included; other items 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