Tank style anchor with 4 3/4" W X 3 1/4"H opening designed to fit over any round or flat rear crossbar.
* Hard plastic shell will not crack when filled in the field with 50 lbs concrete, 39 lbs sand or 24 lbs water.
* Built in carry handle and stackable design for convenient storage.
* Bright yellow color for visibility and safety.
* 12'W x 8 1/2" H