Eastern Mountain Sports (EMS)

An add-on component of a Thule rack system, the Short Roofline Adapter allows you to increase the bar spread on 2-door vehicles with short rooflines.
Features:
- Ensures correct weight distribution for increased carrying capacity
- Please consult the Thule Fit Guide to match the correct Thule parts with your vehicle
- Thule One-Key System lock cylinder (not included) compatible
SummitOnline.com

The Thule 477 Short Roofline Adapter provides a wider spread between front and rear bars on two-door vehicles with short rooflines, enabling you to transport a kayak or luggage box. Designed for use with Thule 400 Aero Foot, Load Bars and Fit Kits, and two Thule cylinder locks (all sold separately).
This description was also provided by: Skis.com