Feature●?+15° to -15° Tilt. ?3/8"-16 Top Stud. ?3/8"-16 Bottom Socket w 1/4"-20 Bushing.●?Includes 3 Anti-Rotation Set-Screws.●?Max Load 22.5kg (50lb).●?Ball Diameter 75mm.●?Base Diameter 68mm.●?Height 63mm. ?Weight 336g (11.9oz)●?Includes Bubble Level.Description ?+15° to -15° Tilt. ?3/8"-16 Top Stud. ?3/8"-16 Bottom Socket w 1/4"-20 Bushing