The abus diskus 20 padlocks are the original diskus padlocks they have the 6 disk abus plus disk cylinder mechanism which resists drill pull manipulation attacks a through hardened steel alloy shackle to resist saw attacks and deep weld technology which offers maximum case strength these features offer the highest level of protection by restricting the usual method of manipulation the fitted dust cap helps prevent cylinder damage and there are 30000 manufactured key differs each lock supplied