MiniMuc is a compact sediment corer with an auxiliary frame that can be used not only for sediment extraction but also as a transport frame. Use four 600mm long tubes for sampling, with diameters ranging from 40 to 100mm. A 40mm core tube is used for sampling sandy sediment, and a 100mm core tube is used for sampling silt. The device is equipped with a bracket for installing lead hammers, which can ensure the insertion of heavy sediment.