Romanoff Original Blue Lo-Shrink Rubber Strips: 5 lb Box

These original blue lo-shrink rubber strips come in a 5 lb box and are the industry standard for traditional vulcanized molds. This formula is prized for its low shrinkage rate, ensuring that your final jewelry pieces remain true to the original master's size. The strip format makes it incredibly easy to "pack" a mold frame tightly around complex designs to ensure 100, percent coverage. It is a reliable, time-tested material that has been a favorite of professional mold makers for decades.