We know you know that plants need the sun to grow. But did you know that sunlight actually becomes harmful once a plant reaches maturity? Sure you did. You smoke buds. You know what's what. That's why you want this UV jar to keep your eighth fresh for as long as possible. To lengthen the lifespan of your cannabis, grab this UV jar. It blocks harmful light while allowing beneficial infrared to sneak through. Dark Violet Glass jar with an air-tight screw-top lid. You can write on the decal with a Sharpie and erase with a damp cloth.