ALL WELDED 10-GAUGE STEEL CONSTRUCTED RACK HOLDS BIKES UPRIGHT AND ARE IDEAL FOR ATHLETIC FIELDS AND PARKS WITH AN EXISTING CEMENT SURFACE. FEATURES A ROUND MODERN DESIGN FOR SIMPLICITY AND SECURITY. ONE-PIECE RACK IS EASY-TO-INSTALL. SECURELY HOLDS UP TO TWO BICYCLES. UNASSEMBLED. MEASURES 37"" X 33-1/2"". ANCHOR INSTALLATION INSTRUCTIONS DRILL 3"" DEEP HOLE USING "" CONCRETE BIT (NOT INCLUDED).INSERT CONCRETE ANCHOR INTO HOLE.SET ANCHOR BY TIGHTENING NUT.REMOVE NUT.PLACE FLANGE MOUNT OVER BOLT.PLACE NUT BACK ON BOLT TIGHTEN.