Oster Horse Hair Finishing Brush Mixed, , 0.8" high 3.25" wide Oster Finishing Hair Brush. Horse and Livestock Grooming Aids Manufacturer: OSTER CORPORATION Manufacturer part number: 78399-230 Rubber control-touch handle for added comfort and better grip Densely packed medium/soft bristles distribute natural oils to produce a beautiful sheen while removing dust and fine dirt Innovative handle easily fits hands of all sizes Medium, natural horse hair bristles Available in blue only