Pair of triangle shaped blocks 4"x3"tallx6"base length. These self adhesive blocks were made by NSI for bracing the foot in the kneeling position in a canoe. They are great shape for a bunch of other uses like: - outside of the knee in a kayak - inside or outside of the knee in a c-1 - toe blocks in a canoe - contouring a bulkhead - anywhere that needs a little wedgie :) Sold as a pair. Ordering quantity of 1 will get you two individual pieces.