A thicker version of the TMC Strike Detector II. It has a twice thickness; 3mm. Each piece has a slit in the middle so you can attach it by folding.
Contains 15 pieces of 13mm x 20mm, 10 pieces of 13mm x 15mm, and 10 pieces of 13mm x 10mm per pack. Available in 3 colors; Red, Yellow and Pink. 3mm thick