Macroplugs have a slit that allows for easy insertion of a cutting or bare-root plant. These round plugs fit perfectly into our Gro-Blocks™. For best results with these Macroplugs always insert them in the GRODAN Gro-Smart tray. The individual cells will make sure that the plugs stay closed around the stem of your cutting. For information on how to take cuttings please go to our SEED pages. Try out our Macroplugs today and see what you have been missing! Macroplugs come in a convenient 50 count bag. Specification Chart: