Q'Straint Slide N' Click Bottom Assembly PN: Q8-7580-A Floor anchorage mount fixed securing restraint pocket in transit and Paratransit buses Compatible with both QRT Standard/Deluxe and Q-5000 Slide 'N Click fittings Installs with a single bolt and provides 360 Degree rotation and flexibility Works with the top assembly (Q8-7580) attached to a retractor for a complete tie-down Meets or exceeds all SAEJ2249, ISO 10542, FMVSS 209,210,302,222, cmVSS 209, CSA Z605, AS2596 and ADA requirements