Ladbrooke Soil Blockers - 3/4" Micro Blocker (20 Blocks) - Bootstrap FarmerMake the perfect soil blocks! Looking for an efficient, environmentally friendly way to grow plants? Ladbrooke Soil Blockers are the perfect solution with just one stroke you can make twenty 3 4" soil blocks that provide indentations ideal for seed sowing and quick germination. Made from zinc coated solid steel, they're maintenance free and even prevent root shock naturally! Perfect if you have limited space or need large numbers of small seeds grown