Convex II Diamond hot fix nailheads are three dimensional and have depth (height). They feature a Diamond base with angling sides to a top center. They are available in 12x6mm, which is approximately 1/2 inch x 1/4 inch.
The nail heads are flat back, featuring a heat activated glue on their underside for hot fix application. They can also be glued with proper gluing techniques.
A great addition to any project, an excellent replacement for pronged nailheads.