Give your plants the best start possible with these professional-grade root development trays, designed to create strong, healthy root systems. Healthy Roots, No Chemicals: Develops a natural, fibrous root system without harmful chemicals, preventing roots from circling and ensuring optimal growth. Rapid Growth & Increased Vitality: Encourages horizontal root branching, accelerating plant growth, boosting overall plant vigor, and ensuring successful transplantation. Trusted by Professionals: Used widely by commercial growers to reliably produce healthier, stronger plants ready for successful transplantation. Versatile Use: Suitable for various growing methods including above-ground, in-ground, or container-based gardening. 18 Individual Cells per tray Cell Dimensions: 3.25 in. x 3.25 in. x 4 in. Ensure your plants thrive from seedling stage to successful transplanting with confidence.