Black 24-Cell Tray w/Vented Dome. 1 count. 
Really nice smaller tray w/vented dome. 14.5"L x 9"W x 4"H (Dome-2.5"H, Tray-2"H).
Cells are 2"W x 2"H. Excellent for propagation, isolation, etc. Use 24-cell insert for propagation, leave out 24-cell insert & just use tray for other style pots. Fits in smaller space than regular 1020 trays. Many uses!