Create glowing projects with DIY Glow, a medium-weight, 100% polyester yarn featuring a built-in glow-in-the-dark effect. This yarn features 71 yards per skein and is perfect for nighttime accessories, costume details, and novelty trims. The fiber charges under light and glows in the dark for a fun, interactive crafting experience whether you're knitting, crocheting, or anything else! Machine washable and dryable, keeping its luminous effect intact.