Anchor Universal Rubber Sprue Base For Casting Flasks

Universal Rubber Sprue Base for Casting Flasks

• A rubber sprue base with round button suitable for flask sizes 2.5″, 3″ and 3.5″
• Use when casting jewellery
• Can fit to a perforated or solid casting flask to form the base of the casting tree
• Hold the casting flask in place and forms a leak-proof seal
• Universal base can be used with the three different sized flasks