The first picture is a product picture, the other pictures are sample displays Description: Metal aluminum alloy shell, technology is fashionable and bright.   ◆ Made of aluminum alloy highly elastic waterproof silicone material, which is stable, durable and has strong extension tension   ◆ Three switching modes. ◆ Installation or disassembly can be done in 3 seconds without any tools. ● Silica gel is cold-resistant and heat-resistant, and can be used safely at low temperature-0 degrees or high temperature-60 degrees. ● The outer layer is coated with highly elastic waterproof silica gel, which is stable, durable and has strong extension tension. ● High-elasticity silicone multifunctional fixing method can be installed on handlebar, seat cushion standpipe, front fork, rear upper fork, rear backpack and safety helmet. ● It is fixed behind the safety helmet and can be used as a warning taillight. ● It can be used continuously for 35 hours in full brightness and 160 hours in flashing. ● The effective visibility of warning is over 600 meters. ● Quick-release design, which can be installed or disassembled in 3 seconds without any tools. ● Emergency lighting, outdoor play at night, mountaineering lighting and bicycle lighting are all suitable. ● Water-resistant and rain-proof design, not afraid of flooding in rainy days. Specifications: Product: gem riding taillight safety warning light Dimensions: 2.5*2.5*3.4cm Colors: black, blue, silver and red Material: aluminum alloy silicone Power supply: two 2032 batteries Flash mode: always on/flash suddenly/flash slowly Package Included: 1* taillights