Features: It can absorb shock and collision, effectively resist impact, reduce machine damage, and provide a better flying experience. Lightweight, only about 26.1g, not affect flight and endurances. Using high toughness materials, with strong flexibility and resistance to impact, it is not easy to fall. Easy to install, color available. Portable storage, split design for easy carrying, can place in pockets and backpacks. Specifications: Material: TPE Color: orange, dark gray (optional) Size: about 8.6x3x2cm/3.38x1.18x0.79inch Applicable Model: for Avata 2 Package Includes: 4Pcs/set Propeller Protective Rings note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.