Ikar ground sleeve offer a reliable solution for fastening to existing concrete structures and masonry. Installation is simple and secure using a injection anchor system (item no.: 41-57/9a). Alternatively, steel structures can be attached using M16 bolts of grade 8.8. It is important to note that the existing structural element must be able to withstand the forces generated during a fall. The necessary proof of load-bearing capacity must be provided by the client. All sleeves are supplied without fastening material.