Customize with your own logo, graphics and text for a really unique footwear accessory.This bracelet is made of soft PVC with three buttons to adjust the size. The photosensitive material changes colors depending on ultraviolet intensity. 4 colors Initiating the UV radiation intensity. Overexposure to UV rays can be dangerous, and with this convenient product, you will know exactly once you- e had enough sun contact. No batteries needed and it’s adjustable for all ages. We can customize the logo as your request. Great ideal for business,conference,office,meeting,working,restaurant,school,test field,business travel and many more! Measuring 9.1* 1.4 inches, this custom uv tester wristband soft pvc bracelet. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. Tailored branding: Supports logo imprint and design personalization. Product Highlights: Portable, durable, practical for daily use.