Model Number: AMB-103-081 Brand Name: OEM Key Specifications/Special Features: Material: environmentalsiliconeSlap the strap on wrist, it can roll along your wrist naturally (no buckleneeded) steel bar inside, silicone outside for protection.Changeable strap as you like in different colorSizes: 240*30*2mm, 215*25*2mm featuresenduring,family safe, waterproof,stylish, deet-free effective duration 15-30days protection ingredients 100% natural essence oil approved certificate CE,RoHS,REACH,MSDS How to use Puncture any of the five holes on the top part of the wrist band for desired level of fragrance. application wearable on wrist,ankle,backpack,baby carriage etc.