This is a JMI molded ABS rolling case originally designed to house a Meade ETX-LS6 or ETX-LS-8 telescope, but with the removal/modification of foam could be used for anything smaller than 25"x18" such as a mixer or synth (my original intention). Each half is about 5" deep. It is a very high quality case that originally sold for over $800 and was only used for basement storage. Telescoping handle and luggage-style wheels.