3 inch Net Cups Heavy Duty Pots Wide Rim Design - Orchids &bull; Aquaponics &bull; Aquaculture &bull; Hydroponics Slotted Mesh for Kratky Wide Mouth Mason Jars (50 Black Cz All Star Round) * 3-1/4" Wide by 2-1/2" Tall x 50 pcs BLACK color. Perfectly fits in 3 inch holes for DWC growers. Easy to use with superior materials and smart design features. Grow bigger, healthier plants with less work. * BPA-FREE, NON-TOXIC, FOOD GRAFE SAFE plastic for consumable plants. HEAVY DUTY durable design can withstand years of frequent use. They're easy to clean, UV-Resistant and reusable to easily endure outdoor conditions year round. * THE LOWER SHIELD prevents light from penetrating hydroponic reservoirs to help eliminate pythium. LOTS OF NARROW SLITS and stars give you bigger root growth while letting roots grow their own way. Our pots work with many types of soil based and hydroponic media such as expanded clay pebbles, lava rocks, pumice, vermiculite, rockwool, etc. Grow healthier, happier plants with greater production! * HEAVY DUTY WIDE RIM + FLANGE DESIGN makes our pots easy to grab, pick up, and a breeze to transport. Quickly lift to inspect roots, growth, and plant health. Featuring raised bottoms for self-standing applications, our pots will stand alone without balancing them. These are rapidly becoming the preferred standard for home gardeners to large scale hydroponics professionals. * 100% MONEY BACK GUARANTEE ensures a risk-free purchase. Our Cz All Star Net Pots are the finest on the market. We back their exceptional quality and design with a 30 Day No Questions Asked Warranty. Buy with confidence! - Cz Garden