You're looking at a set that'll fit pretty much any 16 to 22 inch bike, steel frame with plastic and rubber bits that actually hold up—we've seen these go through a season of hard use without the wheels cracking or the bracket bending on the axle.

1130 grams per set, so it's light enough the kid won't drag the rear end but solid enough you won't worry about it folding on a curb, and the CE and ISO9001 marks mean we're not corners on the weld joints or the plastic compound.

Kids bikes, mountain bikes, road bikes—it's basically universal for that wheel size range, though we usually tell buyers it's not ideal for full-suspension frames where the dropout angle is weird, just a heads-up (check the bracket geometry before ordering 50 sets).
Black or silver, both are painted with a decent powder coat that doesn't flake off after a few weeks in the garage, and package dimensions are 40×31×30cm at 23.5kg gross for a carton of 20 sets—shippng cost per unit works out better than most.

We keep stock on teh 10mm axle version mostly, but the 8mm and 12mm adapters are avaliable with about a 20-day lead time or so, just confirm which axle your bikes use before you place the order.

One year manufacturing defects, but the plastic wheel itself is a wear item—you'll replace those after a few hundred miles of pavement scraping, and that's just the nature of the materail.
We require a minimum of 20 sets per order, which is one full carton. That keeps the packaging and shipping efficient for everyone.
Yes, we offer customization on both the product and packaging. Just let us know your specs and quantities—we'll work out the details for your brand.
For a standard 20-set carton, lead time is usually around 15-20 days after order confirmation. Custom orders may take a bit longer depending on the changes.
Absolutely, we can provide both the CE and ISO9001 certificates. Just ask your sales contact and we'll send them over.
We offer a 1-year warranty against manufacturing defects. If any issues pop up from normal use within that year, we'll sort it out with replacements or repairs.