The Loop half of a key is an item dropped by numerous NPCs. It is also a reward from various random events, and can be found in the chest in Taverley, the Barrows chest, the gnome restaurant, an evil tree reward, from cremating Vyrewatch, from Kingdom Management and from caskets. The loop half of key may be looted from magpie implings as well as its other half, the tooth half of a key.
The loop half of a key is used with a tooth half of a key to make a crystal key. This is used to unlock the Crystal chest, which contains a dragonstone, and other items.
Before the introduction of the Grand Exchange, both halves of the crystal key sold for the same price, at around 20,000-30,000 coins each. However, with the Grand Exchange, the tooth half of the key was perceived to be rarer than the loop half, and it became more expensive. Prices for both key halves later equalized, but now again tooth half is more expensive than the loop half.
The Loop half of a key is confirmed to be on the rare drop table, so a large number of monsters can drop it (a list can be found on the rare drop table article).
Trivia
- When confirming the Loop half of a key from a random event box, it says, "Confirm: Gems" instead something similar (such as a key).
- The loop looks extremely similar to an ankh in Egyptian culture, the symbol of life.
- In rare cases, you can find another Loop Half of a Key inside the Crystal chest
| Steel key ring keys | |||||||||||
| H.A.M. |
 Bronze Iron Steel Silver Prison | ||||||||||
| Triskelion Treasures |
 Crystal triskelion Fragment 1 Fragment 2 Fragment 3 | ||||||||||
| God Wars Dungeon |
 Frozen Armadyl Bandos Saradomin Zamorak | ||||||||||
| Shade keys |
| ||||||||||
| Bone keys |
 Ghosts Ahoy Shilo Village | ||||||||||
| Ascension Keystone |
 Primus Secundus Tertius Quartus Quintus Sextus | ||||||||||
| Miscellaneous |
 Keepsake Crystal Tooth half Loop half Dragonkin Strange teeth Strange loop Treasure Trails Muddy Prison (Prison Pete) Prison (Troll Stronghold) Sinister Tarnished Iron Cell House key Magic path Ranged path Cavern Columbarium (Shiny) Saradomin Zamorak Small To the Crossing (Birthday) Guard's First floor Casket Display cabinet (Dimension of Disaster) Display cabinet (The Golem) | ||||||||||
