This Harken 40mm Carbo blocks in good condition. As you can see in the photos the block visually is a fine condition, the bearing are in a used condition and could be improved with lubricant
OFFICIAL DESCRIPTION
Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming.