Vintage Original OEM Stihl Technical Information Bulletins cover the following ,Engineering Changes on model 070 / 090 saws T.10.86, Engineering Changes on the model 051 / 076 saws T.12.86, engineering changes on the Stihl TS 350 / 360 Cutquick T.16.86, Engineering changes on the HS 242 Hedge trimmer attachment T.9.86, engineering changes on the model 056 saws T.13.86, work shop equipment T.15.86, engineering changes on the model 038 saw T.7.86, and finally engineering changes on the FS 353 Brushcutter T.8.86 your buying the exact item shown will be shipped in priority mail flat rate envelope and are buying it as is no refunds or returns