Specification: Material: Hard plastics Color: White, Yellow Light Source: Outer lighting Dimension: 11.2x2.6x0.7 cm / 4.4''x1.0''x0.28'' Weight: approx. 35g Use: Reflectors absorb outer strong lighting for self-illumination, used as a safety signal in night cycling.The stronger for the outer lighting, the stronger for the reflecting effect. Features: Small and portable, lightweight and durable for use. Highly reflective, safer for night cycling. Fit to most bike spokes, easy installation. Package Includes: 1 Pair Of Spoke Reflectors Ships in 7 business days. It is shipped from China. Delivery is provided by China Post Air Mail. Delivery time depends on the couriers, local customs in your country also holidays, weather conditions. Usually it takes from 39 to 60 days, depending on the customs at your country.