The SKB Case 1SKB-4009BP Bose L1 Model II Power Stand and Audio Engine Case is custom made for the Bose L1 Model II PS1 power stand and T1 ToneMatch audio engine. It is the perfect companion to the SKB-5009BL L1/LII loudspeaker case. It is made of high-density polyethylene (HDPE) that exceeds ATA category 300 flight specifications. The latches are made of unbreakable fiberglass-reinforced nylon and they incorporate TSA-accepted and recognized locking latch system. The case is transported by folding carry handle, pull handle and built-in wheels.