1/2" Fiberglass Day Whip with a pressure release mount for easy and fast removal. The 1/2" fiberglass day whip is thicker and stronger for higher speeds and/or running larger flags. The 1/2" Fiberglass Day Whip is perfect for running flags on UTVs, Jeeps, Trucks, Sand Rail or other off-road vehicles. If you don't already have our pressure release mounts with your LED lighted whips, you'll need to add-on the bottom portion of the pressure release mounts The pressure release mounts make it easy to take off your 1/2" fiberglass day whip, and even replace with your LED whips. Watch the video for a better understanding.