CRESTA's Supa Riddle Square Mesh is a great help in preparing the optimal feed mix. First of all, too coarse parts in a composition can easily be removed, in order to subsequently obtain an optimal moisture distribution in a mix. These sieves also come in handy when caring for live bait such as pinkies, maggots, casters and worms. The seven fit on the regular 17ltr. buckets and liners. The metal part is seamlessly incorporated into the plastic ring.