When you make a soil block with a soil blocking tool you can choose the shape and size of the seed hole by selecting different pins.
These pins are interchangeable and sold in sets of 4.
- Cubic Insert - creates a small cubic hole exactly the same size as a Micro 20 cube
- Dowel Pin - makes a deep long hole for a larger seed or a cutting
- Seed Pin - makes a shallow hole ready to take a seed