1).Material: Silicon shell+Transparent plastic+LED 2).Product brand: New animation design,the Silicon can stretch and can be fasten in any cylinder(bicycle handlebar) 3).Features: This product adopts two LED light bulbs for glow and brightness clearly visible,Built-in two CR 2032 buttons batteries for each product and can be working more than 100h. 4).It can stand with cold weather when the temperature below 20 degree. 5).3 Operating Modes: S