Level 4 Plant Propagation Cloning Kit: Humidity Dome, Tray, Inserts, heat mat, grow plugs and more! 15" x 9" x 8" This DWC (deep water culture) Kit includes: 24 rapid rooter grow plugs, Humidity Dome, Tray and (2) Inserts (with holes for water circulation) pH Testing/Adjusting Kit and Rootech Cloning Gel General Hydroponics Flora Duo A and B two part Nutrients High Quality Heat Mat, Air Pump, (2) Airstones and t-fittings BONUS! Uncle Frankie's 12 Tips to Successful Cloning is included!