Spec1: Made In Taiwan
Spec2: with clamshell quilting function
Spec3 : 5mm Ruler

ITEM NO. 
MA-QT--HC4-9 (3mm) = home sewing machine.
MA-QT--HC4-9 (5mm) = long arm sewing machine.
 (OPP bag package)

This template (MA-QT-HC4-9) consists of 4 half circles 
(Inside dia) 4", 3-1/2", 3" and 2-1/2" to create half circles (Clamshells)
3-1/2", 3", 2-1/2" and 2" repeats.

It is always much easier to stitch inside the shape than around the outer edge and the 1/4"
increment lines help make echo lines with the same template. 
All 4 half circles come with centre line.
Clamshell quilting

5mm = with  MA-RUFT-HS-NS free motion foot