The Firefox yo-yo by Auldey yoyos. Click on the picture to see more details and to buy this yoyo! The Firefox is a nicely finished all metal yo-yo featuring bright anodised colours, concave yoyo bearings and laser engraved designs. The Firefox also has small parallel grooves on the inner surface of the yoyo, similar to the grooves found on the Werrd Two Fat Ladies Groovy Lady yo-yo. In play it is unresponsive and very smooth.