shrinkage to half its initial diameter for quick installation 100% wide polyolefin rubber assortment of sizes for various applications Contents: 30 x 2.0 x 40 mm 25 x 2.5 x 40 mm 20 x 3.5 x 40 mm 20 x 5.0 x 40 mm 16 x 7.0 x 80 mm 8 x 10.0 x 80 mm 8 x 13.0 x 85 mm