UMB/B-1 Umbrella Base

Model UMB/B-1 Umbrella Base is designed to be used with a picnic table to hold an umbrella pole under the table, when the pole is inserted through a hole in the table top.  The hole in the table top and this base combination will hold the umbrella vertical and secure.
 

Features include: 23-3/8 in. dia. disc base, 1-5/8 in. ID (1.90 in. OD) x 6 in. long receiving pipe, thumb set screw with knob, required hardware to assemble. 
 

Weight: 20 lbs. Finished with black enamel.
 

This umbrella base is NOT designed to hold an umbrella alone. It can only be used underneath a picnic table, and the umbrella pole must be inserted through a hole in the table top.