Model Number: RL84081 Key Specifications/Special Features: Material: 100% siliconeSize: 202 x 12 x 2mm, 180 x 12 x 2mmColors: purple, blue, red, and yellowLogo: could be silkscreen printing, debossed and embossedPacking: each per OPP bagFunction:Health care device and measure the UV index of outdoor sunlightHelp guard against sunburn and promote safe sun practices, so you know when is time to use sunblock againBand made of photochromic silicone that can change color in steps with the intensity of the UV radiationOEM orders are welcome