spool of thick elonian cord ?
It’s one of the time gated ascended crafted materials along with for example, lump of mithrilium and glob of elder spirit residue. The time gated ascended ones can be crafted once per day per account. The 24 hours starts at reset.
http://wiki.guildwars2.com/wiki/Spool_of_Thick_Elonian_Cord
Recipe
The recipe can only be crafted once per day per account, on the standard daily reset.
(edited by Astral Projections.7320)