Deep so it supports curls instead of so many diffusers that just smoosh your curls. A little big for travel, but worth it I would say. Also, the rubber nozzle means minimal if any damage or scratches to your hair dryer.

It works great for my long, thick hair. Bowl is wide and deep which allows me to dry my hair in bigger sections without deforming my waves. It fits my standard con-air and revlon hair dryers fine and stays put. It’s kind of bulky so it wouldn’t be the easiest thing to travel with but if you know how to pack shoes, you’ll know how to pack the diffuser lol.

It fit my dryer perfectly. I really liked that I could control the airflow.

This diffuser easily contains and gently dries my hair through its large bowl. It doesn't heat up too much during use, and the rubber grips keep it on my hair dryer even though the dryer's nozzle is oval. (Side note, I would recommend only getting this diffuser if your dryer has a round nozzle. It wobbles side to side with the oval, but it's still definitely useable.) This diffuser IS large, but it's not so big that I wouldn't pack it in a suitcase. For the price, I think this diffuser is definitely worth it.

This isn't ideal for traveling unless you pack a little bigger. But for home it's wonderful and works great.