This model is just the clamp and it has no practical value without one of my screen cradles! I recommend the "Strong and Flexible" plastics for the clamp. The detail plastic can get a little brittle. The clamp snaps onto the back of the screen cradle of your choice to secure the screen and chip. This integrated two piece clamping system for the DNA20/30 does not require any glue or epoxy of the electronic components. You will still need to adhere the screen cradle to whatever case you end up using for your build.