This is a set of two handmade hairpins featuring frog motifs, made with resin. Each one offers a different "color change," creating a slightly mysterious and cute accessory. ★ White Frog Hairpin (Top) When exposed to ultraviolet light, the color changes from white to a muted green. The color subtly changes outdoors or in sunlight, making it a stylish accent. ★ Light Green Frog Hairpin (Bottom) Uses thermochromic pigment that changes color from light green to dark green at low temperatures of 10-15°C. The appearance changes depending on the season and temperature, making it a fun item to have. See images 11 and 12 for color change examples. Both have gentle colors that are easy to match with any outfit, perfect for everyday use or as a gift. ・Made of resin ・Due to being handmade, there may be individual differences such as air bubbles and color unevenness.