Wooster Lock Jaw Tool Holder is for use with a extension pole and securely holds a paint brushes, roller frames or scrapers with a maximum diameter 1-3/8 inches or 35mm. Lock Jaw is fully adjustable for virtually any angle, range of 160 degrees and locks in 9 positions. Durable fiberglass reinforced nylon and polypropylene construction, for use with any standard screw-fit extension pole or Wooster GT extension poles.