Get at the link: https://carbonfiberhoods.com/vsaero-frp-tkyo-wide-body-body-kit-bmw-3-series-328i-335i-e90-2009-2011-4dr-vsaero_109100/ This is a TKYO Wide Body Body Kit manufactured or distributed by VSaero primarily made of FRP material. VSaero FRP parts are manufactured with fiberglass and plastic resin which strengthens (F)iber (R)einforced (P)lastic. Using FRP allows VSaero to form aggressive styles of various sizes or shapes while still retaining a large degree of strength. when installing new unpainted and unfinished fiberglass parts there may be cracks or surface imperfections that need filled and/or leveled. This should be fixed in the prep stage of installation at a professional body shop. Bolts, screws, and double sided tape is not included. All fiberglass parts require modification, shaving, sanding, drilling, filling in order to ensure proper fitment.