they invent weaving,pottery,and metal working

pottery, metallurgy, and textile production

They invented the hoe, weaving and pottery :)

Neolithic people decorated pottery as a form of artistic expression and to denote cultural identity. Polishing stones improved their functionality and durability for various tools and weapons. Both practices were significant advancements in Neolithic technology and craftsmanship.

because looking fine and use in ritualistic purpose of decorative pottery also. polished stone tools are very useful and fine objects.