Size description: bike light is 6.5 cm/ 2.6 inch in length, bicycle lock is 100 cm/ 39 inch in length, bicycle water bottle cage length is 15 cm/ 5.9 inch, bike bell is 2 cm/ 0.78 inch in radius, bicycle mirror is 4 cm/ 1.57 inch in radius, 360 degree rotation bike phone mount 10 cm/ 3.9 inch in length, suitable for most bicycle Practical and classic: USB rechargeable front and back bike light have 3 modes, including 100% lighting, 50% lighting, fast flashing, to alert following cars/ people and you can use it on rainy day; The bike bell is lightweight, durable, bicycle bell makes a loud, long and crisp sound to remind pedestrians on the side of the road Quality material: bicycle mirror is made of quality glass, 360 degree rotation and you can avoid blocking your vision with your body or arms while riding, suitable for a variety of bicycles, bicycle lock chain is made of ABS plastic and steel wire, durable and sturdy, rustproof and corrosion resistance, not easy to break or damaged Easy to install and disassemble: these bicycle fittings are suitable for most bicycles; 360 Degree rotation bike phone mount is made of silicone, has good elasticity, can quickly return to shape after stretching and tightly to prevent the phone from falling; Bicycle cup holder can adjust to fit most sized water bottles, securely holding your bicycle water bottle What you receive: package comes with a USB front and back rechargeable bike light set and data cable, a 360 rotation bike phone mount and a bicycle lock, bicycle water bottle cage, a bicycle rearview mirror and a bike bell