SALAMANDER SUPER A-5 High quality ceramic bonded clay graphite crucible that are resistant to high temperatures and thermal shock.strong SALAMANDER SUPER crucibles are used to melt various metals, and provide consistent performance in fuel-fired furnaces and medium / high frequency induction furnaces The smaller sizes are typically used to melt precious metals. SPECIFICATION: Height Overall:Top Outside Diameter:3 3/8 ;86mmweight is 3lbs 4 oz