Description Jade China, Qi Jia Culture Dimensions: Height 17 cm by 5 cm Weight: 98,4 grams Jade knife blade with three holes from the neolithic period Qi Jia culture carved from jade with striking mix of colours. The main body is of white-grey colour while the pointy end of the blade bears brown and black speckles. The holes were used to fasten the blade to a wooden support with ropes.