15 New Castaldo Gold Label Strips

• This is a new set of 15 Castaldo Gold Label strips
• Made of organic rubber
• Castaldo is known throughout the jewelry industry as a standard for dependability, performance and value
• Has a high concentrations of pure natural rubber, making it pliable and durable
• Vulcanizes at 307° F (153° C)
• Shrinkage is 3 to 4%
• Each measures approximately 18" x 2 7/8" x 3/8" (457 x 73 x 9.5 mm)