Color Change Sun SensitiveUV Tester Sensitive Silicone Bracelet Rubber Wristband
Size: 202x12x2mm or customized
Features: washable, durable, flexible, reusable
Will be changed with different purple color in sunlight/UV light, more deep purple if UV is more strong
Usages: outdoor activities, promotional purposes, advertisement gifts
Logos: can be customized
OEM: yes