Heavy Gauge Steel Basket with Industrial Texture Painting. High Flux Y30 Strontium Ferrite Magnet. High Impedance Aluminum Former with EISV Voice Coil. Poly Cotton Spider with Woven Round Tinsel Leads. Laminated Paper Cone Surrounded with Pressed Foam.Round Shape PP Vacuum Dust Cap. Recommended Ported Box: 0.90 - 1.40 Cubic Feet. Please feel free to send us a message if you have any questions about this item or other items for sale! Transit time could take longer during busy holiday seasons.