Wood is the main material on which the Cello is made, mostly, although other materials like carbon fibre or aluminium can be used occasionally.
Top and Back
Usually carved out of a solid block of wood, but less expensive brands use machinery to do in a few minutes what a luthier would take even days to do. Some other even cheaper brands use laminated wood, which start to affect greatly the sound quality.
Neck, fingerboard, pegbox, and scroll
The neck, pegbox, and scroll are normally carved out of a single piece of wood, usually maple.
Originally made out of animal gut, most modern strings used today are wound with metallic materials like aluminum, titanium and chromium.
Tailpiece and endpin
The tailpiece is traditionally made of ebony or another hard wood, but can also be made of plastic or steel.
Bridge and f-holes
The bridge is not glued, but rather held in place by the tension of the strings.
Traditionally, bows are made from pernambuco or brazilwood. Bow hair is traditionally horsehair, though synthetic hair, in varying colors, is also used.