Inline Services manufactures many styles and sizes of polyurethane foam pigs. There are six standard styles of foam pigs Inline offers. The foam disc, hand launch, criss cross, bare squeegee, swab, and power brush pigs. They range in size from 2 inches up to 60 inches. These pigs are used for liquid removal, drying, sweeping, general cleaning, and batching. Foam pigs are our most popular style of pig since they are very cost effective and versatile.