The product consists of 17 Emco wedges in blue and red colors, with sizes ranging from 11mm to 16mm (7/16 to 9/16) and 13mm to 16mm (1/2 to 5/8). These wedges are manufactured by EMCO under the manufacturer part number SWR. Designed for use in chain hoists, cranes, and rigging systems, these high-quality wedges provide a secure grip for material handling applications in various industrial settings. Minor corosion present on some.