Features: High strength plastics construction enhances impact resistance by 50%, providing durability protecting against scratches and collisions during intense skateboarding maneuvers. Accuracy engineered ensures seamlessly attachments to standard four wheel skateboards, eliminating slippage during tricks and grinds. Ideal for both beginners mastering balance and cyclists performing street tricks, offering reliable safety across skill level. Optimized for high intensity scenario like downhills slopes, or daily commutes where light weight durability. Customize your board's edge with multiple color elections that complement your style while reinforcing critical stress points against wear. Specifications: Color:Eight Choices Dimension:365x17.5mm/14.37×0.69in Component:Plastics Package Includes: 1pc skateboard ribs 10pcs Installation screws note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.