An edge paint roller is a uniquely designed paint applicator for adding paint to leather edges. Some products have very fine edges, such as wallets and watch bands. Other projects have larger edges such as briefcases and bags.
Using a small paint brush to apply paint is do-able, though requires detailed concentration and an even application across a usually long surface. In comes the edge paint roller. It is a round, tapered metal tip that can spin/roll. The tip is dipped into the paint and then rolled across the leather edge. This leaves an even, consistent layer of paint. Perfect!
Edge paint rollers can be cleaned, reused, and are definitely a helpful leather working tool for someone that prefers and performs a fair amount of edge painting.