From the Rader/Radar series of high-performance, high-quality erasers with mild erasers and excellent erasing capabilities, the Sun Radar eraser that changes color when exposed to the sun. Made of special fabric that has a grip and is resistant to breakage. Available in 3 colors You can enjoy two colors in pink for violet, light green for blue, light blue for green for shade and shade.. Please store away from direct sunlight after use, as it will deteriorate if exposed to light for a long time.