- Hign-concerned Chemical: None
- Type: Road Bike Sunglasses
- Frame Color: WHITE
- Model Number: SP218
- Gender: Unisex
- Lenses Material: TAC
- Frame Material: TR-90
- Brand Name: ROCKBROS
- Origin: Mainland China
- Item Type: EYEWEAR
- Sport Type: cycling
Notes
1. Color change time: winter-1 minute, summer-40 seconds.
2. Speed depends on sunlight and UV intensity!
3. The rate of discoloration is related to the intensity of ultraviolet light and the temperature.
(if UV intensity and temperature is low, The speed of discoloration will become slower).




















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