DIVIDER HOOPS SET OF 4 FOR CORNERSTONE WORKBENCH TILTABLE TOP SHELVES 15-3/4""D FEATURES UL STYLE 'MARGIN-TOP 0PX; PADDING-TOP 5PX; PADDING-BOTTOM 5PX;' HEIGHT 15-3/4"" SIDEWAYS ADJUSTABLE (FRONT LIP DOES NOT PREVENT ADJUSTMENT). CAN BE TIGHTENED UNDER THE SHELF WITH THE SCREWS. ONE SET INCLUDES 4 DIVIDER HOOPS AND A SCREW SET. INCLUDES UL STYLE 'MARGIN-TOP 0PX; PADDING-TOP 5PX; PADDING-BOTTOM 5PX;' DIVIDERS HARDWARE