These RapidArt High Risers are machined then tig welded and polished from 304 stainless steel. They will give you a 35mm rise measured from the end of the bars, they come back 25mm and are 25mm wider. All standard cables, brake lines and bar end weights are retained. At this stage you must mark out and drill the switch block location holes (hence the discounted price) as explained in the fitting instructions supplied.