PSR Bike Tie-Down Clamps Forged from durable aluminum, the Tie-Down Clamps are equipped with heavy-duty springs. This combination ensures a secure hold of your motorcycle when loaded onto a truck or trailer. Features: Instant anchor points for tie-down hooks Anti-slip and anti-scratch protective rubber liner Machined from forged aluminum with heavy duty spring and stainless hardware Large opening for single or double tie-down hooks Clamps securely onto any 1 - 1.5 grips, handlebars, engine guards, roll cages and more Ideal for motorcycles, ATVs, UTVs, Side by Sides, jet skis, snowmobiles Durable anodized finish Sold as a pair Patent Number: US 9,586,512 B2