The I-Beam Trolley Anchor (Part # A6101) is an anchor designed to be used in combination with either a lanyard or an SRL to form a complete I-Beam trolley system. It may also be used for fall restraint and as a work positioning device. The I-Beam trolley wheels allow for smooth travel around the work area while always remaining connected. The safety locking toggles allow for easy adjustment and also eliminate the risk of accidental clamp slippage. For use by one worker with a combined weight of up to 310 pounds. This is the most versatile I-Beam trolley system on the market.