Do not send us an email or note specifying what length chain you need. You must ORDER the correct length. BUYER must check chain length needed before ordering. Any info provided by seller regarding stock length is to the best of our knowledge, but seller is NOT responsible for chain that is ordered incorrectly. Any return for different length chain will be at buyer's expense, including shipping both ways. PLEASE check BEFORE ordering. This brand new o-ring chain sprocket kit fits the following models 2001 Polaris Trail Blazer 250 2002 Polaris Trail Blazer 250 2003 Polaris Trail Blazer 250 2004 Polaris Trail Blazer 250 Included is 1 520 x 78 natural steel color, o-ring chain chain may need to be cut to length 1 Master link clip style 1 11 tooth front sprocket 1 38 tooth rear sprocket Tensile strength of 8200 pounds Factory Spec brand Stock gearing for these models is either 11/36 or 11/38 with a 520x76 chain check your model before ordering if not sure. Factory Spec brand sprockets are made of hardened steel and built to last O-ring style means it will last longer with less maintenance than conventional chains