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Editorial Review
Leak-proof, and will fit both regular and perforated flasks. Great for Centrifugal casting and vacuum lost wax casting processes; made from natural rubber materials, and holds 5/16" - 3/8" tree tightly into place. Please contact us with any questions. We always combine and reduce shipping costs on multiple orders. Please visit our store for other great refining and jewelry tooling items such as; Melting Furnaces, Safety Gear, Crucibles, Molds, Stamps, Tongs, Borax and Much Much More! Thanks for Looking!

Features
1) Holds 5/16 - 3/8" Tree Tightly in place
2) Leak-proof
3) Measures 3-1/2" in diameter
4) Will fit both Regular and Perforated Flasks
5) Great for Centrifugal casting and vaccum lost wax casting processes

Specification
Binding : Office Product
Brand : PMC Supplies LLC
Color : Black
Label : PMC Supplies LLC
Manufacturer : PMC Supplies LLC
Model : RB-3-1/2"-SPRUE
PackageDimensions_Weight : 0.31 pounds
PackageDimensions : L:6.00 X W:6.00 X H:4.00
ProductGroup : Art and Craft Supply
ProductTypeName : ART_SUPPLIES
Publisher : PMC Supplies LLC
Studio : PMC Supplies LLC
Title : 3-1/2" 90 mm Rubber Sprue Base Jewelry Lost Wax Casting Flask Ring Tree C Style