QRT Deluxe 4 Retractor Kit with L-Track Fitting 4-Point wheelchair restraint retractor kit for L-Track floor anchorages. Designed for transit & Paratransit buses, crash tested at 30 mph (50 km/h). J-Hook ends attach to most mobility frames. *Floor pockets and restraint belts are sold separately. Meets or exceeds all SAEJ2249, ISO 10542, FMVSS 209,210,302,222, cmVSS 209, CSA Z605, AS2596 and ADA requirements.