These staples will fit the following staple guns. ROCAFIX MS05,MS100,MS40V,MS20,MS30V,MS500. DRAPER ST0,ST2. MAESTRI ROCAMA 53,ME53. ESCO RALLYE S530,DERBY S530,COMPACTA N530. B&Q VALUE TACKER. RAPESCO HOBBY 53EL ,853-D, 853-P, 853-T. STANLEY HOBBY8, PRO8ST10, ST14, HD14, VARIO14. ARROW T27,JT21. RAPID/RAWPLUG R53E, R153, R253, R253E, R353, R453 E COMBI, R530