A 25+g sample of Zirconium metal in the form of a section of Zirconium crystal bar. Purity is 99.81%.  Crystal bars like these are produced by the crystal bar process aka van Arkel–de Boer process.  Zr metal produced in this way is usually very pure and suitable for use in nuclear applications.  Length of the bar is about 2cm and bar weight will vary between 25-30g.  You may receive a piece with two cut ends or one cut end and one chopped end.