Description Clear Dome, Adjustable Vents: Includes a transparent dome for easy observation without disruption of humidity levels; Two adjustable air vents help control humidity and temperature to keep your plants on the right track; Handle makes lifting the dome easy; Snap makes the user's experience better Crafted Details: LED light bars provide additional light to make the plants stronger as they grow; 240 cells mean more efficient seed-starting; Black bottom is good for promoting plant root growth and drainage holes keep your seedlings from being overwatered; 3.6″ Higher Cover leaves enough space for seedlings to grow stronger Compatible with Heat Mat: Our seed trays are made of durable, high-quality PET and PP material and are compatible with heating mat with a temperature range of 0 to 120°F; For best results pair the seedling tray with our heat mat Multi-Functional: VIVOSUN 27-ounce handheld pump sprayer designed for spraying plants, car cleaning & maintenance, pet bathing and more indoor or outdoor cleaning solutions; Especially suitable for indoor use; This product is tested to ensure safety at water temperatures up to 131°F Translucent Bottle: Unlike other bottles, this Vivosun Pump Pressure Sprayer’s bottle is translucent with a clear calibration scale on the side so you can easily check fluid levels and know exactly when and how much to refill