1.Our blind rivets are made of aluminum alloy, which is not easy to rust or break, and will not fade over time. 2.Blind rivets have good performance and are reliable, making them ideal for indoor and outdoor use. 3.The thick shaft of our flange rivets ensures a secure hold and pops out when tightened. These rivets will hold in place, giving you a long-lasting connection that won't corrode or fall apart. 4.The rivet stem is smooth, easy to install and easy to connect. They are tubular rivets with a mandrel passing through the center. The flange rivet mandrel is smooth, burr- and fine in workmanship. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.