Marcys PUGMs are the latest in Underglass Molding technology. The PUGMs are made of a high-grade synthetic rubber allowing for extreme flexibility and cornering - fit 90 degree corners without the need to miter or relief cut. Furthermore the CLEAR adhesive blends with the frit resulting in a perfect aesthetic look without the need to use black primer on the edge. The PUGMs use the strongest adhesive in the industry. PUGM2 3 and 6 have a built-in guide bar that results in a perfect line every time. PUGMs are perfect for many uses such as back-glasses and body shop R& - Rs. Marcy PUGMs are the best value Underglass Moldings on the market. Proudly Made in the USA. 6.3mm - 1/4 inch x 75 ft roll medium firm.