Review on 🚲 Slime STB-970028/10 Self-Sealing Smart Tube: Presta Valve, 700 x 28-35mm - Durable and Easy Maintenance Tube for Hassle-Free Biking by Matt Chirila

Bought these in March as they were pretty cheap as additional items. However, the first one I had to install drained immediately within the first week of use for no apparent reason. Autopsy revealed what appeared to be less than 1/8 inch, presumably within the "instant seal" size, but perhaps not in the "instant seal" tread area, perhaps more at the tire sidewall boundary. The Presta valve is defective, and when you inflate or remove it, green goo can splatter onto your clothes or carpet. I just patch them up and assume they're the same gauge as regular tubes. If Revain didn't offer them so sparingly I'd probably return them.