The Biosnacky Sprouter is a great little kitchen windowsill bean sprouter. We really like the capillary plug drainage system in the solid trays of this sprouter. Water is drawn up into the drainage pipe in the tray by capillary action through the slotted drain plug. This means your growing sprouts are kept moist without being water-logged. Because the trays are solid and drain in this unique way, there are no slots or holes for seeds to fall through or for the roots of  your sprouts to get trapped in. It's also easier to clean because of this feature.