Drone owners with E88 or Teng1 models, this replacement parts kit is exactly what you need to keep your quadcopter flying! The kit includes everything shown - 4 drone batteries, 4 propellers, 4 main gears, and 4 motor gears, so you're covered for the most common replacement needs. The motors are sized for 716 with 7-tooth small gears, which is the newer version of the E88. Having spare parts on hand is so important with drones - when you crash (and let's be honest, we all crash sometimes), being able to quickly replace broken propellers or damaged gears gets you back in the air fast. The quality matches the original parts, so you don't have to worry about compatibility issues or performance differences. I keep a set like this in my drone case, and it's saved me multiple times when I've had minor crashes during flights. The propellers fit perfectly and provide the same flight characteristics as the originals, and the gears mesh smoothly without any alignment problems. Whether you're a beginner learning to fly or more experienced but still dealing with the occasional mishap, having these essential spare parts means less downtime and more flying time. The value is great too - buying this kit is much more economical than purchasing individual parts separately. Definitely worth having in your drone maintenance kit if you own an E88 or similar model!