Impact Umbrella Bracket (2 Pack) Standard Fixed Shoe Mount Umbrella Receptacle 2 Adapter Studs Tilt and Swivel Action Whats In The Box: Reversible Male Stud with 1/4"-20 & 3/8" Screw Thread, Reversible Female Stud with 1/4"-20 & 3/8" Female Thread, Shoe Mount, 1-Year Warranty