Plug trays are great for individualizing single plants. These heavy duty, semirigid black plug trays allow you to easily separate species in one tray, reducing potential disease spread, and easing transplanting. The plug trays measure 11"x 21 1⁄4" and easily fit into our 1020 no drainage trays and permanest trays (lip of plug trays rest on top of other trays so that cells are in the trays. Depending on cell size, the bottom of the cells may not touch bottom of tray.) Strip Trays come as one full size tray that can easily be “snapped” into two trays.