The image shows four pieces of stone artifacts displayed on a yellow background. The artifacts appear to be from the Neolithic period, as they are elongated and have a rough texture. 

The first piece on the top left is a rectangular shape with a pointed tip and a flat base. It is made of a light-colored stone, possibly clay or stone, and has a slightly rough surface. The second piece in the middle is a larger, more elongated piece with a curved top and a pointed bottom. The third piece is a smaller, more pointed piece, and it is also made of the same stone.

All four pieces are arranged in a triangular formation, with the largest piece at the bottom and the smallest at the top. The largest piece is slightly larger than the other two. The smallest piece is smaller and appears to be a larger piece, but it is slightly smaller than the larger one.
- There is a label on the bottom right corner of the image that reads "Knives?"