1/2" width disposable acid brush with horse hair bristle and a rolled tin handle is ideal for applying acid flux, glue, lubrication, and other coatings or using for small-area cleaning and the removal of debris. These disposable acid brushes are very popular for one-time use. 13/16" trim, and a handle length of 5-1/4" x 1/2". The horse hair fill material is crimped-set at one end within a rolled tin handle.