Heavy Duty: Heavy duty design accommodates 3 lb. and 4 lb. posts. Barrel ID 4"; Weight 45 lbs.
Medium Duty: Accommodates 2 lb. and 3 lb. u-channel, square or round posts up to 12 ft. Barrel ID 2-1/2"; Weight 21 lbs.
Light Duty: Lightweight for snow fence and 1.12 lb. delineator posts. Barrel ID 2-1/2"; Weight 21 lbs.