The Mammoth Flip Ground Anchor features a unique design comprised of hardened steel covered with a neat plastic housing, to provide a discrete anchor point for your motocycle or scooter. It's heavy-duty steel plate bolts directly into any concrete surface, with four expander allen head bolts. Comes complete with anti-tamper bearings to ensure removal is not an option. Suitable for indoor and outdoor use. Compatible with Mammoth's whole range of Motorcycle Chains.