The best looking car topper on the market direct from the manufacturer,

This wind tunnel tested base design takes 4mm panels and is made from tough ABS plastic. Ease of use has been taken into consideration with help of handles at each end to enable easy positioning and removal. Soft rubber protected magnets for stability and stainless steel springs enable panel to sway in the wind.

Specification:

Product Name: Rallye Magnetic Car-Top Base
Ref: White: CAR-RAL500B
Ref: Black CAR-RAL500X
Base Size: 150 (w) x 500 (h) x 75mm (d) (5.9" x 19.69" x 2.95")
Weight: 1kgs

Standard Colours: White or Black
Material: Injection moulded ABS plastic