This Artero Ceramic And Ionic Brush features a 25mm barrel diameter, designed for efficient and effective hair styling. The ceramic coating ensures even heat distribution, which is crucial for quick drying and achieving smooth, frizz-free results. The ionic technology helps to neutralize static electricity, leaving hair manageable and shiny. This tool is ideal for creating volume, shaping ends, or smoothing short to medium-length hair during blow-drying sessions.