"Coton à bâtir" translates to "building cotton" or "cotton for building" in French. It's a term for a type of cotton thread, also known as Special Embroidery Thread. This thread is 100% cotton and consists of 4 non-divisible strands. It's known for its smooth surface, high lustre, and suitability for embroidery. You are getting five spools of thread per purchase.
Please email me with questions.