General description The Seed Starting Tray is an essential tool for gardening enthusiasts, designed to facilitate the germination of various seeds including vegetables, fruits, and flowers. Made from upgraded PET plastic, these trays are heat resistant up to 120°F, making them compatible with heating pads and grow lights. The included humidity domes create a protective environment for seedlings, shielding them from adverse weather conditions. Technical specifications Material: PET plastic Heat resistance: Up to 120°F Tray dimensions: 1.5 inches (L) x 1.5 inches (W) x 2.2 inches (H) Lid dimensions: 7.3 inches (L) x 5.7 inches (W) x 2.2 inches (H) Humidity control: 50% to 100% Package contents: 12 plant starter trays Measurement allowed error: +/- 1-3 cm Installation Fill the seedling tray with nutrients, filling 2/3 with soil. Place the seeds in the holes. Cover the seeds with a layer of soil and water. Place the lid on top and adjust the knobs to control humidity and airflow as