This is a custom-made case designed to fit the CLASSICPRO wireless system CWT810GS, which I am also listing. It's a commercially available effects pedal case with a custom-cut foam insert to perfectly accommodate the product. The cutouts are sized at 210mm x 180mm (for the receiver) and 105mm x 75mm (for the transmitter). The foam sheet is 30mm thick. The lid also has a 20mm thick wave-shaped foam sheet. Antennas and spare AA batteries can also be stored. The foam is not glued in place, so it can be removed and used for other purposes, such as an effects board. The base foam can be cut to any size in 15mm increments. The internal dimensions of the case are 420mm x 220mm x 25mm (base) + 60mm (lid). The third photo shows the CWT810GS inside the case for reference. The CWT810GS is not included in this listing. Although unused, this item has been modified. Please understand this before purchasing. No returns or exchanges will be accepted.