Rockwool Cubes (1.5 inch) 98 Cubes, 1 Sheet

These ao36/40 rockwool cubes are slightly under 1-1/2" square at the top, and is slightly over 1-1/2" in depth. The seed hole on the ao36/40 is on the wide end of the cube. The rockwool seed starting cubemonly used for starting tomato and cucumber seedlings. It is designed to be used with the dm4 and dm6 propagation blocks which have a hole to accept the ao36/40.