A 1000L Concrete Column Skip with Rope and Tremie Tube (often called a Tremie Skip) is a specialized piece of construction equipment used to pour wet concrete into narrow, deep, or hard-to-reach formwork, such as columns, walls, and lift shafts. With a Safe Working Load (SWL) of 2400 kg and a 1000-litre capacity, it safely accommodates the weight of dense wet concrete (which typically weighs roughly 2.4 kg/L).