The Burris Race Dial elevation turret lets you to write directly on this "whiteboard" style turret. Using a dry erase marker you can mark each target on a given stage for your specific ballistic data. After the stage you can easily wipe the markings off the dial face and repeat. As an alternative the dial is the same width as cellophane tape so your target marks can be recorded on tape and easily removed as well.Features:Whiteboard turret for custom dope markingsFits all Burris XTR Pro rifle scopesTick marks remain, but numbered indicators have been removed to provide room for handwritten data3/4" height is common with the width of most transparent tapesBlade slot allows for quick removal of tape between stages