Bristles of gray horsehair and polypropylene. Block with molded hand grip. Slightly flared bristles. Threaded center hole, threaded side hole and tapered side hole. Applications: use for stippled, swirled or sponged effects with plaster or texture paints.Bristles of gray horsehair and polypropyleneBlock with molded hand gripSlightly flared bristlesThreaded center hole, threaded side hole and tapered side hole