Q'Straint QRT Deluxe Kit for Permanent Floor Mount | Q-8101-FQRT Deluxe Kit for Permanent Floor Mount INCLUDES: Qty 4 Single QRT Deluxe Retractor for Permanent Floor Mount Q8 6200 F SKU: Q 8101 F Dual Tightening Knobs Provides additional tensioning if needed Automatic, Self Locking Allows easy, one handed hook up of wheelchairs Self Tensioning No manual tensioning required. Retractors automatically take up slack to ensure wheelchair passenger is always secured Positive Lock Indicator Patented feature clearly