Made in the UK by Ladbrooke, the Mini 5 Soil Blocker is a hand-held device that is pushed into a wet soil mix. Squeeze the handle, and it ejects 5 individual blocks of soil measuring 1.5 inches on each side. On the top is a dimple that will receive one seed. This model does not receive transplant blocks from the Micro 20. Soil blocks allow the roots of plants better freer access to oxygen. Use this tool to start larger seeds like melons, squash or pumpkins. When the seedling is ready, it is potted on into a 4″ soil block, and so on, before transplanting into the ground.