Master perfectly quilted 2" and 3" clamshells with our Clam It! ruler.
Based on our Clamshell guide and stencil, this ruler uses your previously quilted clamshells as a guide for further rows.
Easy to see registration marks means you can line up without the guess work.
Available in 3mm, 4.5mm and 6mm thickness to accomodate varying sewing machine shank heights.