36 large plain holes (not countersunk), size E.
36 medium plain holes (not countersunk), size B.
72 medium plain holes (not countersunk), size B.
Easily level soil in Soil Blocker grids.
Easy dosing for cut-flower solutions.
Create square indents for potting-up mini blocks.
Replacement part for Johnny's Drip Irrigation Kits.
Use with soil blockers to create dibbled holes for seeds or cuttings.
Replacement part for Johnny's Drip Irrigation Kits.
Prevent fertilizer backflow into your drinking water.