Complete series composed of 5 stainless steel tapered pins accurately machined. They guarantee a steady locking of tubes with Ø int. from 0,6 mm to 4,0 mm to tie several types and sizes of tube-fly. Compatible with Stonfo vises TubeFly item 610 and Transformer item 654.Do you need help? Do you have any questions?Ask a question and we'll respond promptly, publishing the most interesting questions and answers for others.