Sold as a pair, they stand 100mm (4") in height and slide into the channel of your Rhino-Rack Vortex Roof Racks. It's a great little accessory that is recommended for use if carrying multiple elongated items.

Features:

• Allows you to position where your ladder or load goes
• Suitable for Rhino-Rack Vortex bars
• Simple fitting
• Fitting Hardware included