Carbon Fiber Motor Gear Protection Ring Set for Parrot AR.Drone Generation 1 & 2 Black Color: Black. Material: Carbon Fiber Suitable for: Parrot Ar Drone Dimensions: (2.36 x 1.77 x 0.04)" / (6 x 4.5 x 0.1)cm (L x W x H) Weight: 0.7 oz / 20 g Package Includes 4 x Protection Ring