Solid Rubber Ball for Industry 1.Application:Widely used in round screen 2. ... Rubber 3.Size:16mm,19mm,22mm,24mm Solid Rubber Ball for Industry (not inflatable):1. Size: φ16mm, φ19mm, φ22mm, φ24mm, φ26mm, 28mm ... ~1.5For more details, please view our website! Solid Rubber Ball for Industry (not inflatable)