This kit includes 3 sheets cut to 440mm x 440mm and 2 sheets cut to 220mm x 440mm; 0.125" thickness.
You will need to purchase the rest of the hardware separately.
If you want to build the Prusa Lack enclosure from their article and need the acrylic pieces then we have you covered. https://www.prusaprinters.org/cheap-simple-3d-printer-enclosure/
At Printed Solid we make a line of enclosures for various printers including our own design for the Prusa Printers but we know that sometimes you want a DIY solution.
Acrylic can be very expensive at your local box store and the quality can vary greatly. So we have used our buying power to get you all of the acrylic pieces needed to make your own IKEA Lack enclosure. Our acrylic is manufactured to very high tolerances and is made from cast instead of extruded acrylic. Cast acrylic is stronger than extruded and has better optical clarity so you would get a wavy appearance looking at your printer go.
We have priced this lower than most box stores would charge and that includes free shipping in the United States.