This is supplementary material, not a replacement part. Why should I use this Door Seal Kit? 1,Improve the effects of air conditioning cooling and heating. 2,Reduce door impact and suppress wind noise. 3,Effectively prevent rain and dust from entering. 4,Reduce wind noise when drive at high speeds. Package Content: 2 x Front Door Strip 2 x Rear Door Strip 2 x A Pillar Strip 2 x B Pillar Strip 1 x Hood Strip 1 x Trunk Strip.