Chiffonade Black Round Shape Rubber Sprue Perforated Base Durable Lost Wax Casting Flask Ring Professional Jewelry Vacuum Casting Wax Molding Base Trays(4 inches)

1. Made of rubber material, solid and durable to use,high temperature resistance and wear resistance2. Used for jewelry casting, shaft seal, hole seal, dust seal, fixed seal, oil seal, water seal.3. Portable and lightweight, easy to carry and store,necessary items for jewelry makers.Specification:Material: rubberColor: BlackType: 3in, 4in, 5in (optional)Package list:1 * Rubber Sprue Base

• Compact and Lightweight Design – Portable and easy to carry or store, making it a convenient addition to your jewelry toolkit or workshop supplies.
• Premium Rubber Construction – Made from rubber material, offering solid structure and exceptional durability for long-term, reliable use in various sealing applications.
• Essential for Jewelry Craftsmen – A must-have accessory for professional jewelers and hobbyists alike, providing dependable sealing performance in casting and precision work.
• Excellent Heat and Wear Resistance – Engineered to withstand high temperatures and frequent use without deformation or degradation—maintains integrity under demanding conditions.
• Multi-Functional Sealing Solution – Ideal for jewelry casting and widely used for shaft seals, hole seals, dust protection, fixed joints, oil sealing, and water resistance—ensures tight, secure performance in diverse settings.