FEATURE 3D Printed PLA Heavy Gauge Plasticity Structure. (2 X Box supplied) Custom Sizes available, just contact us! No Screws Included. Suit For electronic projects, power supply units, student projects, amplifiers, etc. SPECIFICATION Material: PLA Dimension(outer):100mm x 60mm x 25mm(L*W*H) Inner: 96mm x 56mm(L*W) Dimension(outer):150mm x 70mm x 30mm(L*W*H) Inner: 145mm x 65mm(L*W) Dimension(outer):180mm x 80mm x 40mm(L*W*H) Inner: 174mm x 74mm(L*W) Other Sizes available and custom sizes can be supplied.