This flat mylar tinsel features excellent breaking strength, making it perfect for bodies, ribs, and lateral lines on flies. The small size measures 1/64" wide with 30m per spool, the medium size is 1/32" wide with 20m per spool, and the large size is 1/16" wide with 11m per spool. Just like Veevus threads, this pearl tinsel is extremely strong and durable, ensuring your flies are both attractive and resilient.