Brush or Sponge Pilling Tester, To determine the pilling propensity and simulate normal wear of knitted and woven fabircs used in apparel and automotive interiors by brush and/or sponging specimens together in a circular motion to form pills. Brush or Sponge Pilling Tester complies with ASTM D3511, FORD BN 12-4, FORD BN 108-03, etc.