7 Function 5 LED Universal Bicycle Safety Flasher Bike Attachment Included Super Bright 5 LED Bulb Emits Powerful Beam Water Resistant Design | Compact & Lightweight Dimensions: 2 x 2 | Brightness: 2,500 MCD Arm Strap & Bicycle Attachment Ideal for Joggers, Cyclists, Skiers, Hikers, Kids, Halloween and Much More!