ATB-ACC-8000
ATB-ACC-8000 Retractable Ratchet Tie Down with Universal Mount for AluRack or Base ErgoRack Crossbars
Mounting Hardware Included
Manual Overview: http://www.truckbox.com/images/PDFO/ACC-8000 OVR.pdf
Manual Assembly: http://www.truckbox.com/images/PDFO/ACC-8000 MAN.pdf