Comfort grip to ease wrist fatigue. Squeegee comes with the Unger S style channel and uses standard Unger rubber replacements. Features new Ergo-Tec tool lock that will securely lock onto the Unger pole end. This will prevent the tool from inadvertently falling off of your Unger pole. While the squeegee will work with the older style Unger locking cone, the tool requires the new style locking cone for the lock to function. The handle on this new XL model is longer, adding even more comfort for your grip.