This MAKEDO connector set includes 30 SCRU connectors that can connect up to three layers of corrugated cardboard, and 10 SCRU XL connectors capable of connecting up to six layers. There's also a bonus mini - tool that makes connecting cardboard as easy as the 'righty tighty, lefty loosey' principle.

Using the MAKEDO connectors is a breeze. First, pick the right connector for your cardboard layers - use the SCRU for up to three layers and the SCRU XL for up to six layers. Insert the connector into the cardboard where you want it to join. Then, use the bonus mini - tool. Just turn it right to tighten and left to loosen. When using, make sure the cardboard is clean and dry for a better connection. Store the connectors in a dry place to prevent rusting. If they get dirty, you can wipe them with a dry cloth. That's all you need to know to make the most of your MAKEDO connector set.