WeiHeng Self Luminous Antiskid Rubber Grips BMX Bike Bicycle Handlebar Multi-colored Glow Grips for Night Cycling Made of high quality rubber, flexible and strong, elastic Self luminous and TPR rubber materials Length of 4.9 IN. Suitable for handlebar diameter: 0.780.9 IN) Multi-colour, white, blue, yellow, green Glow in the darkness, suitable for night cycling