Premium Bandai has opened an official pre-order page for the Denshi Sentai Denziman Denji Ring Die-Cast Swing. For those who are unaware the Denzi Rings were the main Henshin device of the Denziman. The set will include all five main Denzi Rings, which will be made of die-cast metal and each will also include a key-chain loop.
Keep in mind these are not actual electronic devices, so they do not contain lights or sounds.
Pre-orders are currently open, and the set is scheduled to be released this coming January. In addition, this set is priced at 5,400 Yen, before adding additional fees. Those who are interested should contact their preferred middleman for more details.
Source: Premium Bandai