Prestige by Certus Optima Investment-49 lb Bag Redi-Prongs Fully mirror-polished — no rubber

Fully mirror-polished — no rubber grips

Oval rolo link construction formed from flat or semi-round wire

Collet system accepts multiple shank sizes for the included tips

Compact enough for bench or counter use

and the display instantly shows the exact size in your selected mode

Prestige by Certus Optima Investment-49 lb Bag Redi-Prongs Fully mirror-polished — no rubberPrestige Optima by Certus is a next generation, gypsum bonded investment engineered to deliver ultra smooth cast surfaces when working with today's challenging pattern materialsespecially resin (DLP SLA). Its extra high expansion is designed to accommodate high expanding patterns, helping to minimize flashing and mold cracking while improving detail and metal flow. Features Formulated for resin patterns; also excellent with carving waxes, injection