This is a frame protector, also known as a housing shield or spiral wrap, designed to prevent scratches on a road bike frame caused by brake cable interference. The important point is that you get all six pieces shown in the photo for this price. And they come in Italian colors! This frame protector has a spiral structure, so it can be easily installed by wrapping it around the brake cable without removing it. To be honest, while it prevents scratches, the area where the protector touches will still experience some rubbing, so it won't eliminate scratches entirely. However, it should be the most effective solution available, and should almost completely prevent them. Also, with just one, it can shift when you move the handlebars, and it's a hassle to put it back in place. As shown in the last photo, wrapping two together in the same spot prevents shifting, which is recommended. (They are shown in red and green for easy understanding, but the actual shipment will include two each of red/white/green, for a total of six.) ・Product Overview Frame Protector (Red) 2 pieces Frame Protector (White) 2 pieces Frame Protector (Green) 2 pieces ・Material Thermoplastic Rubber (TPR) ・Size Outer diameter: Approximately 5mm Weight Approximately 3g / 6 pieces