A material that exists as threads, each a complex assemble of binds.
The frame is a bind of cartilage (33%), alga (33%), mucilage (15%), beast (15%) and diamond (4%).
There are multiple mollar, columnar, orthogyric, joined bits of a mucilage-beast (50/50) bind. There are a few less bacillar, columnar, orthogyric, close bits parallel to the previous ones (forming a quadrireticular net) of the same bind.
Eternal gum will appear as smooth, waxy, pink material, existing in threads 3 millimetres in diametre (though alchemists will usually spin them into a thicker rope). This material is perfecty ellastic and will always squeeze back into its original length, which will depend on how it was made. A thread can be stretched up to 200 times its original length. Though the tensile resistance of this material is impressive, it is not hard to cut a thread of eternal gum with a common knife.