Review on 🚴 DUROLITE Road Bike Tubes with Threaded Presta Valve, 3-Pack – Fits 700c Road Bicycle Tires, Removable Valve Core, 700 x 18-26c by Alex Mitra

I ordered 3 packs to have on hand. One of the three had a hole in the chamber about 6 inches from the valve and didn't hold the air right out of the box. I check my tires very carefully for debris before fitting a new tube and I did a second check after finding everything, no impediment so I'm pretty sure this tube is a 'right out of the box' " hole has. 30 Day Return Policy The first tube I used from this set still runs many miles after it's installed, so overall durability seems good as long as the tube is intact out of the box.