OLYCRAFT 25Pcs ABS Acrylic Round Bar Rods White ABS Acrylic Round Tube Hollow Round Tube ABS Plastic Rods for DIY Sand Table Architectural Model Making - 5 Sizes

I can’t speak for serious architectural use for these, but as a hobbyist I’m happy with them. I do use them for miniature models and other crafts, but for my purposes weight and perfect straightness are not necessary in the way they might be for professional models. I’m happy with them for my miniature dollhouses and diorama’s, but for professional quality you likely will want to spend more!

Look, if you need to make a helmet for a Halloween costume for Pikmin;s Captain Olimar, and you need to attach a thing to 2 dog bubble viewers and then attach a ping pong ball with a tiny light to it, this is your thing. Just don't use hot glue because it will melt and you will feel like the high craft council is going to shun you. But it worked. And these were great.

I use these to jam full a rocket valve on a gas blowback airsoft to reduce throughput and reduce power for field limits. I did not use them for what they were designed for but it worked perfectly for what I used them for!

Great item

This is a great tool for modelling and scratch building, several styrene plastic tubes that can serve as anything from pipes to columns to gun barrels. They're a bit thin and not as good as the Evergreen tube sets but perfectly fine for most projects.