Grodan Stonewool Macro Plugs - 1.5" Round Plugs w/slit for Cuttings (32 per bag) 1 Bag

Macro Plugs have a slit that allows easy insertion of a cutting. These loose round plugs fit perfectly into the Gro-Block hole. For best results with these Macro Plugs, always insert them into a tray with individual cells. The individual cell will make sure that the plug stays closed around the stem of your cutting.