The Urban Security UR55 Security Anchor is suitable for floors or walls with a swing shackle and four anchor points. It offers a hi-tech case-hardened steel structure alloyed with Chromium-Molybdenum of 14mm and shackled with a polypropylene cover. The UR55 has been extremely tested against all kinds of attacks, holding up more than 8 metric tons or 18,000 lbs. Both the shackle and baseplate are made of special reinforced Hi-Tech steel and scored 18/20 in security testing. The tough polypropylene ABS cover stays up when you want to pass the chain, and it lays flat when not in use, so it can be driven over without any damage to the vehicle or the anchor. It can even fit two of the thickest chains to protect two vehicles at the same time. It comes with bolts and anti-drill ball bearing inserts plus full instructions. It measures a compact 13.2cm x 12.2cm for minimum impact with maximum effect.