Review (5/5): Fits snugly on my Hot Shot Tools 2100 Salon Dryer w/ 1.9” nozzle diameter via soft rubber internal grips
This diffuser fits snugly onto my Hot Shot Tools Turbo Ionic 2100 Salon Dryer, which has a 1.9” nozzle diameter. The diffuser has soft rubber grips on the inside that grip the nozzle of my hair dryer securely. The opening for the diffuser measures just less than 2 and 1/8 inches, and I believe would easily accommodate 2” nozzle diameter hair dryers. The diffuser slides on over the nozzle of hair dryers and is held in place by the soft rubber internal grips.