The Rider Brace (ライダーブレス, Raidā Buresu) is a transformation device for Kamen Rider TheBee, Kamen Rider Caucasus, Kamen Rider Hercus, and Kamen Rider Ketaros. TheBee's brace is silver and mounted on the left hand while the Kabutech Rider Braces are black and mounted on the right hand. In the same manner as a Rider Belt, it suddenly appears when a user wants to transform. When the TheBee Zecter or one of the Kabutick Zecters is installed into the brace, the user will transform into TheBee Masked F