Cyclopean helmet

The cyclopean helmet is a reward from the Warrior's Guild. It can only be dropped by a cyclossus, which has a combat level of 89. This appears to be the head piece worn by the cyclossus.

The cyclopean helmet offers no bonuses and is worn for cosmetic purposes only. It cannot be stored in one's player-owned house Costume Room.

The cyclopean helmet is available in free-to-play servers, and is also listed in the free-to-play Grand Exchange (thus, able to obtain in free worlds by trading) despite being only obtainable in members' servers.

Trivia

 * When released, the Grand Exchange value of the helmet was 150,000 coins. This rose for only four days, then began to fall. The helmet has drastically decreased in price since it was released.
 * When the cyclopean helmet first came out there was a glitch where, if you began to rest, the item would drag down. This was fixed within a week.
 * There was another glitch where, while wearing the helmet, a player's text would appear at a much greater height than normal. This was also fixed within a week.
 * It was labelled as a members item on RuneScape game guide.