This compressor is used to press your pollen with more pressure than any other manual press, forming a pure hard extract. This twist handle makes pressing extremely simple and easy with better results, anyone can do it. Simply insert the pollen in the middle, place in the pin and screw the lid close and twist. The t-bar handle and cylinder tube is made to fit comfortably in your hands providing good grip without straining and hurting. Aluminum 4-Piece construction Total High: 6-1/2"