Glow In The Dark Yarns Luminous Yarn Hand-woven DIY Hand Woven Glow-in-the-dark Yarn Features: You can also buy a lighter-weight white feather yarn that also glows in the dark. In one note, also adds that its blue glow in the dark yarn is its most luminous color. Introducing this glow in the dark yarn, a yarn that emits a soft glow in the color of your choice once its left under the light for a while. The yarn can be machine-washed like most fabrics as its made from 100-percent polyester fibers. Additionally, the polyester makeup gives this glow in the dark yarn the of being durable enough not to break easily, while being soft enough to be comfortable to the or when wearing. Perfect for glow in the dark arts and crafts and other lit DIY projects, this yarn follows a light absorption principle like most glow in the dark products: if you expose it to light, whether from your smartphone, a flashlight, candle or the sun itself, then this glow in the dark material will brightly when its brought into a more space. You can also buy a lighter-weight white feather yarn that also glows in the dark. In one note, also adds that its blue glow in the dark yarn is its most luminous color. Product Description: all leght Size: 50m Single size: 12x6.5cm Package content: 1PC Luminous wool yarn Note: Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!