And the black rubber ball feet and bottom molding will keep the holder steady. (carolinasauce.com)
A pair of vintage table lamps, each in plated brass with single sockets, supported by linear, arc shaped bodies, stabilized by a «U» form support on ball feet. (1stdibs.com)
I recommend the lacrosse ball foot roll for anyone who spends a lot of time on their feet and / or for anyone who spends a lot of time in restrictive shoes (ie... heels or work boots) (tomcoffeyfitness.com)