These unique wrapping tools help you in specific vinyl applications in very extreme and small corrugations where a regular squeegee is difficult to use. The gold, hard, 72 degree shore, TPEE is designed for the smooth surface vinyl wrapping, great to stick the vinyl firmly. The green, medium, 63 degree shore, TPEE material to help the film stick to the article perfectly and leave no bubbles. The blue , softer, 48 degree shore,is made of TPEE material that it could be soft and flexible enough to reach and stick the contoured parts well while vinyl wrap films installation.