With the Pro-Seeder you can sow fine seeds easily. With a selection of different sized needles, it can be used to sow seeds of all shapes & sizes. You just squeeze the bulb & then release slightly to suck the seed on to the end of the needle. This is the same technique as commercial nurseries use, avoiding waste & reducing the need for thinning out. Ideal for most types of seed, including primula, begonia & tomato seed, as well as many other flower & vegetable varieties.