SKB's SKB-44RW rolling bass case turns your gig bag into an ATA case. Insert your bass guitar, gig bag and all, into this indestructible shell. Slide the 2 halves together, quick-latch them, padlock if desired, then tilt the ATA bass case and roll it away on heavy-duty rubber wheels. SKB is a premier supplier of instrument and gear cases. SKB builds their products with military-spec, ultrahigh molecular weight polyethylene and premium hardware. Their Lifetime Warranty is a reflection of SKB's confidence in everything they manufacture.