The 1SKB-R104 is a roto-molded rack made of Linear Medium Density Polyethylene (LMDPE) that's though enough to shake off the wear and tear of the gigging life. The 1SKB-R104's 4U front is perfect for your power conditioner, dynamic processor, and effect unit, or any other rack gear. A 10U slanted top gives you plenty of space for your mixer or DJ-style control surface. A pair of handy side ports give you easy access for advanced cable-routing setups. And the 1SKB-R104's spacious lid is deep enough to lock on securely even with the optional AV-8 folding shelf attached!