Description: Brand Name: Gemfan The advantages and disadvantages of glass fiber nylon carbon fiber nylon and ABS are compared. Glass fiber nylon is made of glass fiber and nylon. Its advantages are high heat resistance, good corrosion resistance and high strength, but its disadvantages are brittleness and poor wear resistance. Carbon fibre nylon is a composite of carbon fibre and nylon. On the basis of the properties of nylon, carbon fibre with high rigidity is added, which makes the material have higher modulus and rigidity. It inherits the advantages of carbon fibre, such as high hardness, not easy to deform under stress, strong bearing capacity and excellent dynamic balance. ABS, commonly known as engineering plastics, has the advantage of low price but poor performance. Shopkeepers recommend novice first flight with fiberglass nylon is better, veteran words with carbon fiber nylon is more efficient, so you can buy several pairs of fiberglass to buy several pairs of carbon fibers when choosing to buy, so you can use fiberglass to practice the increase of carbon fiber endurance, killing two birds with one stone! Package Included: 1 x CW Propeller 1 x CCW Propeller Name:8045 CW/CCW propeller Type:fixed wing, multi-motor Length:205 mm Central aperture:6mm Fitting ring:6 aps Outer diameter:14mm Center thickness:8mm Weight;15.3/pair Name:9047 CW/CCW propeller Type:fixed wing, multi-motor Length:228 mm Central aperture:6mm Fitting ring:4 laps Outer diameter:14mm Center thickness:8mm Weight;19.4/pair Name:1045 CW/CCW propeller Type:fixed wing, multi-motor Length:255 mm Central aperture:6mm Fitting ring:6 laps Outer diameter:14mm Center thickness:8mm Weight;25.3/pair Name:1147 CW/CCW propeller Type:fixed wing, multi-motor Length:279 mm Central aperture:6mm Fitting ring:4 laps Outer diameter:14mm Center thickness:8mm Weight;28.7/pair Name:1245 CW/CCW propeller Type:fixed wing, multi-motor Length:306 mm Central aperture:6mm Fitting ring:6 aps Outer diameter:14mm Center thickness:9.5mm Weight;28.8/pair