GrovTec US Heavy Duty 1.25in Push Button Swivel Set Black. 25" Heavy Duty Push Button Swivel Set. GrovTec US crafted these Swivels from manganese phosphate-coated steel for maximum durability and premium resistance to corrosive elements. This GrovTec US 1.25" Heavy Duty Push Button Swivel Loop Set is manganese phosphate-coated to resist rust and provide the best protection possible from the elements. With the large push button you can easily install and remove this swivel from your socket without hassles. For those seeking a reliable and versatile sling connection make sure you grab a set of these GrovTec US 1.25" Heavy Duty Push Button Swivels today. Specifications for GrovTec US Heavy Duty 1.25in Push Button Swivel Set: Manufacturer: GrovTec US Color: Black Fabric/Material: Steel Gun Type: Rifle Gun Model: Universal Package Contents: GrovTec US Heavy Duty 1.25in Push Button Swivel Set GrovTec US GTSW288: Heavy Duty 1.25in Push Button Swivel Set Black