Line pins can be purchased as singles or as pairs.
Most bricklayers recommend having four line pins as this will allow you to set up guidelines for a couple of brick courses at the same time. You may have to purchase two pairs of line pins as four pin sets may not be available.
You can purchase a set of line pins that includes a brick line and a pair of line blocks. These tools are synonymous with each other and are frequently used together by bricklayers and masons.
