Special coloured resin blank provided - numerous different patterns/colours available. Choose your own shape for the jar. Suggest lid be shaped to make it easier to get hold of than that shown. Check jaws small enough - Axminster standard C jaws barely small enough, no spare for dovetail on resin blank of 52mm dia. Acrylic chips easily, use light cuts with v sharp tools; shear or scrape. May need hole in jam chuck to push lid off.