Liao : agate round yang grain square boxLong and 7.7 cm wide and 6.1 cm high 3.7 cm weighs 171 gIs material with agate, agate quality of a material is solid, colour and lustre is pure natural, warm, soft is square, four square opening, lash in the mouth, straight wall, flat, bread gold carved yang decorative cover, yang vividly, the modelling elegant and chic, exquisitely patterned, patina of natural of primitive simplicity, texture norm, clever and reasonable, it is a rare and valuable.