Celestial surgebox

The Celestial surgebox is a reward from Dungeoneering. It requires a Magic level of 70, a Runecrafting level of 70, a Dungeoneering level of 70 and 65000 Dungeoneering tokens to buy it. The surgebox stores the runes that one may use to cast wave or surge spells, meaning that one would only have to use one inventory space when casting these spells. One can select the spell for the surgebox to use (so long as it is a wave or surge spell) by right-clicking the surgebox and selecting 'Check/charge'. Casting a spell with the surgebox will decrease its number of charges.

Even the although the Manual and the Rewards trader states that "one would only have to use one inventory space when casting these spells", you must be wielding the Celestial Surgebox in order to use the runes stored into it.

This item can also be received as a drop from Forgotten mages within Daemonheim. It can be bound and hold up to 125 casts of whatever spell set to. When having this item bound in Daemonheim, it does count as an extra bound item, so when you have a limit of two bound items, this item will be a third one.