are these used for holding rails?

Date: 2006-06-25
Owner: Lakshman Thodla
Size:
Full size: 1152x864

Photo Properties
Summary  Details
Make EASTMAN KODAK COMPANY Model KODAK CX7430 ZOOM DIGITAL CAMERA
Aperture Value f/4 Color Space sRGB
Exposure Program Program Flash No Flash
Metering Mode Multi-Segment Shutter Speed Value 1/90 sec
Digital Zoom Ratio 0 Date/Time 2006 Jun 25 08:04:32 +0100