Hot Tools Volumising Brush Set has 2 different size of brushes , the classic brush size of the Volumising Brush and a new smaller brush size ,which is for short to mid-length hair. Its inter-changeable brushes make for easy styling. The revolutionary oval design dries hair faster and with  less effort than conventional styling.

The 2 brush sizes are Classic at 45mm x 71mm and the smaller size at 38mm x 61mm

Including a pouch for easy storage and travel

It has 3-speed settings and a generous 8ft swivel cord to give a free range of movement.