Package Including: 3 PCS Stainless Foam Maker Mesh Size: 0.41 inch x 0.61 inch Metal mesh with foam insert sandwiched together, could produce superior foam Replacement filter for clogged foam cannons The mesh can be squeezed to fit for most foam cannons The sandwich construction of this filter is different than any other foam cannon filter. Using a foam mesh sandwiched between two high grade mesh filters allows for thicker foam production.