A SECURE ANCHOR Theft unwelcome: with the GRANIT™ WBA 75 Wall/Floor Anchor, your bicycle will always stay right where you left it. This is thanks to the 14mm thick shackle made of specially hardened steel. When combined with one of our high-quality bicycle locks, it offers the best possible security for your bike. Everything you need for installation is included with the GRANIT™ WBA 75 Wall/Floor Anchor. All you need is a suitable wall or usable floor.