Frontline Vertical Fixed Beam Anchor* Designed to clamp onto a vertical or horizontal I beam to create a fixed anchor point.. * The anchor can be conveniently adjusted from one side for a secure fit and it's suitable for single user connection * The anchor can be used with either a self retracting lifeline or a shock absorbing lanyard and can fit I beams from 4" wide and adjust up to 18" wide I beams. * Aluminum material makes the I beam anchor extremely lightweight * Installs in just