Rio Grande Cast-In-One™ Stiffener Ring, 88.9 mm

Designed specially for the Rio Grande Cast-In-One™ casting machine, this stiffener ring fits onto the upper edge of the 3-1/2"-diameter clear plastic investing sleeve to give the sleeve rigidity and to keep the opening perfectly round during investment.

• Dimensions: 7.938 x 95.25mm
• Brand: Rio Grande
• Shipping Weight: 1.157 ounces (32.8g)
• Country Of Origin: Bulgaria
• Weight: 0.033 kg