DescriptionPackage : NoMaterial : PlasticItem Type : Speaker CasesBrand Name : Crust ProOrigin : Mainland ChinaItem Type : Dustproof CapColor : Black, Gold, SilverQuantity : 2 PCSbrand new and high qualityFeature:Made of high-quality aluminum/PP/plastic material, durable, firm and sturdy to use.Dustproof design, it can well protect your speaker from dust, dirt, and other particles.Various sizes, materials and colors optional, to meet your different needs.Usage: Use glue to stick to the middle hole of the speaker voice coil.(Glue is not included.)Warm Tips: Please check the size and measure the position of the original speaker voice coil or the position of the old trace. Determine the diameter, select the size and material.Dustproof Cap only, other accessories demo in the picture is not included Specifications:Item Type: Dustproof CapMaterial: Aluminum, PP, Plastic(Optional)Size: 24x34mm/0.9x1.3in, 22x14mm/0.8x0.5in, 35x14mm/1.3x0.5in, 24x42mm/0.9x1.6inColor: Black, Gold, Silver(Optional)Quantity: 2 PCSNote:No retail package.Transition: 1cm=10mm=0.39inchPlease allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package Includes:2 x Dustproof Cap