Simply ‘Stretch & Clip’ to fit - stretchable silicone wrap-around design allows for instant fit and removal. Designed for handlebars and seat posts for mounting frame and paint protection. Each unit incorporates 2 x ultra bright LED’s to ensure you will always be seen. 3 lighting modes: Full On, Quick Flash and Slow Flash. Comes with batteries fitted. Easily removed for safe keepng. Be seen while riding. Uses CR2032 x 4 - supplied in pack. Frontbike light(s). 7lumens. Modes:3. Showerproof. Size H4, W3, D3cm. X button cell (included) . 3hours (dependant on use). Manufacturer’s 1 year guarantee. EAN:5029594616218.