Signet ring shape

Hardness: hard
Colour: blue
Inner diameter: 16 mm
Dimension (WxH): 29 x 29 mm

The Blue Matt Ring Tube formulation offers the most flexibility. They are 6" long and available in a flat top with center hole (Shape A), round tube with off-center hole (Shape B), round solid tube (Shape C), and round tube with center hole (Shape D).