The Green Matt Ring Tube formulation is the most rigid of the three colors. The Purple Matt Ring Tube formulation is general purpose and offers medium flexibility. 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). Dimensions of each shape and size can be found in the table below.

SDS Green

SDS Purple

SDS Blue