It adoptslinear guide rail to control rise and fall . Features: High precisely matched sliding block , no interval swaying , smooth rise and fall Stable piece feeding and embroidery. The large piece pressure spring is pressed to the front of the cutting blade .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 .The device is installed at the side (theend needle position or the end needle position . (the first needle position or the end needle position .) Update Date:2010-9-29 21:28:18