Avanti Ultra Circular Thermal Brush (Extra Large):

Silicone Gel Handle: Silicone gel makes the brush handle spongy-soft and comfortable to use. Fits perfectly in the hand, hugging its shape for a customized fit. The soft-grip and ridges in the handle offer ultimate control without slipping. Handle is antibacterial for added safety and cleanliness. Ceramic technology eliminates static and frizz, leaving hair shiny and healthy.

This brush is available in 2 shapes:
rectangle / oval