Parrot AR Drone 2.0 Indoor hull + stickers Made of EPP (Expanded Polypropylene), which combines both lightness and solidity The indoor Hull is attached to the body of the AR.Drone 2.0 using two magnets, one on the hull and one on the body of the AR.Drone 2.0. The indoor hull will protect you from piloting mistakes; you may touch walls or fly across doors safely