Inner tube for Michelin tyre
Bike tire sizes are a confusing topic. This page is a bit dated, but still worth bookmarking.
There are two valve types: Schrader and Presta. Presta is skinnier and will fit loosely in a Schrader opening; you can get adapters to shim up the difference (technically there's a third type, Dunlop, but I've never actually seen a Dunlop valve).
29&quot; is mountain-bike terminology for what roadies would call 700C; both have a bead-seat diameter of 622 mm. So you can use a tube marketed for road bikes, although a 1.4&quot;-wide tire (about 35 mm) is at the outer edge of what you'd find on road bikes.
In general, you have some latitude when fitting innertubes. As long as they're not bunched up or stretched taut inside the tire, they're fine.