Standard Silver on Black Exterior Design Signature DIgital Honeycomb Laminate Surface ATA-300 Style Gig Ready Flight Road Case Signature Series Certified Gig ready 3/8' plywood *High-density foam interior support & casing Tongue and groove metal railing Square corners Sturdy Aluminum Caster Dishes in Case Lid for easy stacking Industrial Rivets Spring-loaded handles 4' casters w/ brakes on 2 wheels Aluminum extrusion around Caster Plates ProX Limited Lifetime Warranty * ProX Goes Green: The durable hard rubber foams used in our cases contain 70% recycled content. Of that 70%, 80% of it comes from recycled plastic bottles and the remaining 20% from the recycled post-industrial material. At ProX we strive to make the world a better place!