Helix 360&deg; Angle Measure (12101) Transparent plastic for easy measuring Centering Mark and raised edges This item is manufactured in China Transparent plastic for easy measuring centering Mark and raised edges clear and easy to read markings Transparent plastic for easy measuring This item is manufactured in China Transparent plastic for easy measuring centering Mark and raised edges clear and easy to read markings Transparent plastic for easy measuring Centering mark and raised edges Clear and easy to read markings Transparent plastic for easy measuring ^Centering mark and raised edges ^Clear and easy to read markings