If you're flying a 3DR Solo drone, these Master Airscrew propellers are a serious upgrade over the stock ones. You get 4 propellers in the set (2 clockwise and 2 counter-clockwise) with built-in nuts that make installation super straightforward. The performance improvement is noticeable too - we're talking 6-10% better efficiency that translates to longer flight times, higher top speeds, and increased max thrust. But here's the really cool part: they're actually quieter than the original propellers, which makes for more stable flight that's perfect when you're shooting photos or video. They're made from glass fiber reinforced engineered polyamide, so they're extra durable and come balanced right out of the box. The set includes a carry pouch, cleaning cloth, and safety sheet too. They also work with 3DR Iris and Iris Plus drones. Whether you're flying for fun or professional work, these propellers make a real difference in how your drone performs.