The process of manufacturing pendants.

Whoever occupied the Praileaitz I cave spent many long hours carefully walking the river banks, including the Deba, in search of pebbles of very specific characteristics (suggestive outlines, elongated shapes, dark or black colours, etc.). He or she would then bore a hole in one end. The area to be drilled first had to be readied, sometimes by rubbing the stone down and pricking it to help position the drilling tool and centre the hole. The hole itself was bored from both sides of the stone, using continuous circular movements with a sharp instrument, so that the two orifices finally met in the middle to give a biconical hole. Once the basic pendant had been created, different types of incisions were carved on some of the sides and faces of the stone.