This jar blackout sleeve is made of lightproof fabric, ensuring optimal conditions for plant sprouting. Whether you want to sprout , grow small plants, or protect delicate sprouts, this cover is perfect for all your needs. Its simple and convenient design allows for easily application and removal without the need for any additional tools. Features -Color:Black -Material:Cloth -Size:16.00X8.00X1.00cm/6.29X3.14X0.39in -Provides optimal conditions for promoting plant sprouting and growth by effectively blocking out light. -Designed to be convenient and easy to use, making it suitable for sprouting, planting, protecting plants. -Offers secure and reliable light blocking barrier specifically designed for jars, give convenience. -These jar blackout sleeves can meet your daily using needs, very portable for longtime using. -The sprout jar shade cover is made of safe material, which is durable, wear-resistant, washable, reusable. Package list: 2 x sprouting jar blackout covers