in the kool stop store on Amazon I found pads that look like a perfect match but they're $25 and it's just the rubber. https://www.amazon.com/Kool-Stop-Sun...207863&sr=8-31

they also have "the flying wheel" brand in their store, and they have some pads that look the same except the color, they include the metal holders and they're only $7. https://www.amazon.com/Flying-Wheels...&sr=8-245&th=1

can this bike use any brake pads that are bolt on? I'm overwhelmed with options if so.