The 0.3mm medium (commercial grade 6) nylon bristles are designed to quickly remove food stains without scratching the surface, shearing or breaking for long lasting life

All-around flat head design with long frontal bristles to expand into bottle and mug bottom for effective cleaning of internal edges

The 4 In. extension prolongs the brush to a 7-1/2 In. overall length when the extra reach is required to thoroughly clean the bottom of bottles and mugs

Washable with soapy water for multiple uses