Planters Pride RZD102H 10-Inch by 20-Inch by 6-Inch Vented High Dome Helps maintain moisture for plants Sliding vent control allows you to control the humidity levels within the dome Designed to work with 10-Inch by 20-Inch kits and trays 6-Inch high dome allows for use with larger seedlings and cuttings 10-Inch by 20-Inch by 6-Inch