Roller bearing axles. Axels have zerk fitting. Yokes & top plates are heat-treated & platede. Top plate 4-1/2"x 4" with 3/8" holes. 2" Wide. Load Capacity: 400 lbs each
Warning:This product may expose you to chemicals including Nickel, Chromium, or Lead, chemicals known to the State of California to cause Birth Defects and/or Cancer. For more information go to www.P65Warnings.ca.gov