Opens on the air by rope equipment.Manufactured in range of 1 cbm to 50 cbm capacity. Thus, the gripped materials wont be going out of the jaw. When the grab is pulled to the desired location, its jaw opens and the load will be emptied easily. Can get to the working part without any trouble in the setup part. With its two side openning two lids can easily pick up the cargo and by lifting it, can carry to aplace from another.