Compressed earth brick (CEB) press. Hand press, makes 2x 300mm L x 150mm W x 165mm H earth bricks at a time. Use damp sifted soil approx 30% clay 60% sand 10% cement powder. VERY HEAVY requires 3 to 4 people or a machine to lift. Clean soil and cement from the machine quickly and thoroughly to avoid cement hardening on the press.