The Ideal Tray For Sowing Small To Medium Seed & For Softwood Cuttings.black 24 Cell Tray Designed To Fit In Our Propagator.6 Trays Will Fit On Our Water Tray.trays Have Letters & Numbers Down The Side To Help Identify The Cell.uv Resistant & Re-usable Year After Year.tray Size L 18cm X W 15cm X H 3cm.cell Size 3cm X 2.5cm