The problem this solves is pretty straightforward — kids want something that actually looks like a space shuttle when it's done, not a vague blob of bricks, and parents want something that keeps them busy for more than an afternoon.
We've found the 650+ pieces give you a solid build time of about 6-8 hours for most kids 8 and up, though younger ones might need help with the movable payload bay doors and the astronaut figures that actually fit inside the cockpit. It's compatble with major brick brands, so you won't get complaints about pieces not snapping together.
completed model sits at 28cm long by 20cm wide by 17cm tall when you're done, and it's built from premium ABS plastic that holds up better than some cheaper alternatives we've seen — one kid dropped ours from table height and it survived with just a few popped-off pieces. The box itself is 45cm cubed and weighs 1.2kg, which matters for shiping costs. Also, the instruction manual is clear enough that most 8-year-olds can follow it alone, but you'll probably still get asked for help a few times.
For US and EU buyers, we've got the EN71 and CE certifcation docs ready to go with every shipment, so customs clearance is usually smooth. We typically have about 200 units in stock at any given time, but if you're ordering more than 50, give us a heads-up — we might need 2-3 weeks to pull the extra inventory from our backup warehose.
One thing that catches people off guard: teh decorative stickers are applied during assembly, not pre-printed on the pieces, so make sure the kids don't slap them on crooked before the build is done. The 5L drum is easier to handle. Actually, the 650+ count includes some spare pieces — usually 3-5 extras — which is good because smaller parts like the antenna and thruster nozzles are easy to lose under a couch.