August Engineering 3-Pack Bugout 535 Thumb Stud Black/Silver/Blue Aluminum. Pack of three: one each black silver blue finish. Aluminum construction. Specifications for August Engineering 3-Pack Bugout 535 Thumb Stud: Manufacturer: August Engineering Color: Blue Weight: 0.01 lb Package Contents: August Engineering 3-Pack Bugout 535 Thumb Stud August Engineering AE-1401-3PK: 3-Pack Bugout 535 Thumb Stud Black/Silver/Blue Aluminum