The XT Series has been built for the serious connoisseur who recognizes the importance of bringing an aesthetic touch and grand functionality to a room. The XT Series design makes it possible to turn all of your audio/video components into the Ultimate Furniture Design System. Curved and shaped 3/4” [ 19mm ] shelves that are available in a natural Black Oak (B) wood. Strong heavy gauge 2” x 2” [ 51mm x 51mm ] steel tubes create a rack system that is extremely strong and rigid. All metal work is finished in a virtually indestructible textured Black, baked powder-coat finish. This priceless gem is a beautiful and magnificent combination of strength, style and versatility. It’s a must for those who only accept the best. XT-AA1 add-on shelf kits available for the XT-A4. Casters available.