The A051002741 ECHO OEM Recoil Starter Assembly is a replacement part for Echo CS-310 and CS-352 chainsaws. It is a chainsaw starter recoil assembly that comes with the brand's assurance of quality. The product is designed to help start the chainsaw with ease. However, it contains chemicals that are known to cause cancer and birth defects or other reproductive harm, as per California Prop 65 Warning.