It adoptsconnection rod type to control rise and fall . Features: it is propular type. To change the sequin ,just replace the specially –made piece passing groove without the need of disassembly .The operation is simple and convenient .Flat sequin or concave sequin can be used .Commonand high speed embroidery machine can use it .Device is installed at the front side (the first needle position or the end needle position .) Update Date:2010-9-30 1:21:28