REDUCTION RINGS KIT FOR LIAERBA CUTTERS UNIVERSAL lawnmowers REDUCES: 25.4 / 10 mm , 25.4 /12.7 mm , 25.4 / 14 mm , 25.4 / 16 mm , 25.4 /18 mm , 25.4 / 19. 5 mm , 25.4 /21 mm MODEL - TECHNICAL SPECIFICATIONS LENGTH - mm CENTRAL HOLE - mm OUTER HOLE - mm CENTRAL HOLE INDEX - mm CODE: 13271596 ORIGINAL CODE - SR