The Weiwei hand-push seeder turns that job into a walk. It is a single 10 kg, 530 × 560 × 270 mm unit: one side wheel, a long stainless-steel handle with a rubber grip, and a transparent thickened plastic hopper that shows the seed or fertilizer level at a glance. You fill the hopper, set the depth (5–7 cm) and the plant spacing on the adjustable ruler, choose 1, 2 or 3 seeds per drop, then push it down the row — standing upright the whole way.

Inside, a roller geared to the wheel carries seed past a brush that meters it one drop at a time and releases it through a thickened stainless steel outlet that will not rust. A trailing press wheel firms the soil and levels the surface over the seed, so it is windproof in dry land and keeps its moisture. A helical tension spring holds the drum steady over rough ground, and because depth and spacing repeat every step, seedlings come up evenly instead of in clumps.