Spare parts are available for every departure. Thanks to this, the useful life of the bag can be extended.
They are durable, but in hard use they don't last as long as the bags themselves, so for a few euros you can renew the bag to make it usable again.
I used this to replace the broken clip of the bicycle bag, which requires a strap length adjustment.
Easily breaks.
Easy to install. Time will tell how durable, especially in the cold. The originals broke down in the cold weather.
Good product.