Pair of Lightweight Schrader Tire Valve caps for foldable or brompton bikes These are tire valve caps for use on Schrader valves. I was bored of the stock tire caps, so I decided to create something more aesthetic and customized for my bikes. Great gift idea :) Design features: Knurled design for easier grip Inside has a TPU layer to help with air seal Super light weight. The wide design is 1.3g per cap; the narrow design is 0.8g These are available in 2 styles: Narrow - These are more slim and more subtle look. Wide - These have a wider top and thus more surface to grip and turn Each order comes with 2 tire valve caps. We make a best attempt to ship within 24h of payment. Please note these are 3D printed of PETG material for the shell, and TPU for the seal.