This Sound Barrier Set consists of five 2' wide x 5' tall panels. This set will accomodate double bass drum kits. Modular design using acrylic panels and connecting strips makes this one system musicians will never outgrow. It's more flexible than competing brands and much easier to set up, move and break down. All it takes is a few minutes. The Sound Barrier's break resistant panes are made of a hefty 1/4" thick clear acrylic which allows maximum visibility for the musician and the audience.