Garosa 12 Pack Hydroponic Blackout Sleeves for Wide Mouth Mason Jars 210D Oxford Fabric Light Blocking Covers Kratky Method Seed Starting Grow Kits

- STRONG MATERIAL: Hydroponic blackout sleeves are made of quality 210D Oxford fabric and are equipped with adjustable buckles, which are washable and reusable - PACKAGE INCLUDE: You will receive 12Pcs blackout sleeves, each suitable for a 32 ounce wide mouth Mason jar, which is sufficient for your daily hydroponic system use or replacement - MAIN FUNCTIONS: Blackout sleeves enables you to control the light according to different sprout. When hydroponically growing, can block light from entering your container - EASY TO USE: You just need to put the mason jar into the blackout sleeve and then tighten the adjustable buckle, which is very simple, you can use with confidence - WIDE RANGE OF USES: Kratky hydroponics is the most passive form of hydroponics. Blackout bags can help you grow more plants easily, useful and practical