This LED signal lamp is very useful and simple to operate. Simply adjust your night running gear to the right length and press the button to use it. The texture is light and comfortable. your arms or legs to make your night biking and night running or walking safer. Features - Material: PVC - Size: About 19.00X2.50X0.50cm/7.47X0.98X0.20inch - Battery: 2 x button batteries - your arms or legs to make your night biking and night running or walking safer. - Just press the button, you can enjoy two flashing modes. It looks really attractive. - Manufactured with material, it has excellent and high durability and practicality for usage. - Adoption of simple and convenient design, it also can bring much convenience to you. - Made of PVC material, this LED signal lamp can be used for a long time. Package list: 1 Signal Lamp