3 Legged Thing Stilettoz Spikes for Tripods (3 Pack) This Item Includes: 3 Legged Thing 3x Stilettos Spikes - 1/4"-20 Thread - 3/8" Stainless Steel Threaded Sleeve - 3 Legged Thing 5 Year Warranty Thread Size: 1/4"-20 Material: Stainless steel Compatibility: Tripod