The 202D253-25-0 from TE Connectivity / Raychem Brand is black color heat shrink boot with shell size 53. This heat shrink boot has 1.470" (37.34mm) to 1.161" (29.49mm) large diameter and 1.470" (37.34mm) to 0.409" (10.39mm) small diameter. This is elastomer, semi-rigid, irradiated heat shrink boot with length of 7.000" (177.80mm). Operating temperature range is from -75 to 150 °C (-103 to 302 °F).