If you fly your Discovery line-of-sight instead of FPV (First Person View), this nose cone is the perfect addition. Together with a set of red front arms, this nose cone makes it easy to spot the front of your Discovery, even from very far away. Plus it looks cool.Print solid with no support. The tip should skin over with enough upskin layers. To attach, simply slide onto the Discovery. The nose cone features bumps that will click into the two notches used to hold the rubber band for the GoPro. This allows you to easily remove it if you feel like flying with the GoPro, or easily install it if you don't. It may be necessary to slightly scale the nose cone to get a perfect fit.