- Wholesale 2000# TRAILER JACK -TOPWIND - Adjustable height: 9-1/2". - 2000lbs capacity. - Helps take hassle out hitching and unhitching your traller. - Easily and securely lifts & levels trailers & wagons of all kinds. ⚠ WARNING: This product can expose you to LEAD, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.