The Liquid Booster Cylinder from Liquirigs is a unique concept for zig rig fishing. By using the Liquid Booster Cylinder, it is possible to fish your zig foam with a liquid. Simply fill the cylinder with a liquid and a zig foam. Through the holes in the cylinder, the liquid will slowly spread through the water. The cylinders fit exactly into the Liquid Zig Aligner Caps from Liquirigs. Each set includes four colored and two transparent cylinders.