LEGO Transparent Neon Reddish Orange Bionicle Toa Head with Ball Joint Cup (60901)

LEGO Transparent Neon Reddish Orange Bionicle Toa Head with Ball Joint Cup has been used in at least 5 LEGO sets over the past 16 years, since it was first used in 2008. You can also find this part in at least 3 other colors. It has a design ID of 60901 which can usually be found molded into the bottom of the part.