Ray Foster Duplicating Flasks are made of durable die cast aluminm with a nickel plate finish.  The smooth nickel finish facilitates easy removal of the duplicating material. They are available with either a flat or raised base.

Specifications:

• Inside dimensions at base, 4" x 3-1/8"
• Inside height. 2-5/8". (10 cm x 8 cm x 6.6 cm high)
• 12oz. net weight (.34 Kg)
• 14 oz. shipping weight (.4Kg)