By installing the Door Sill Protectors you would like to open the door of your Smart Car more frequently. The Door Sill Protectors are compatible with the Smart Fortwo 451. They are made of polished stainless steel. The package includes 2 pieces, each for every side door. On the Door Sill Protector the word “Smart” is written, as you can see from the pictures below. The installation is easy. From the back side of the Door Sill Protectors you can notice the double adhesive 3M Tape. So, you have to attach them carefully.