Review on BIPEE Plastic Test Tubes: Efficient and Detachable Lab & Scientific Products by Ben Barrington

They are good for the price, especially if you use them as intended. Me, a stingy but resourceful ass, refused to use them to store my big Spectrum weapons. They didn't fit. A few of my others did fit though and the bottom hole was exactly the same size as the small bottom cap on the marks so it kept them straight. However, this made me aware that not all holes are the same size - some are much narrower. When trying to pull out a couple of markers that were a bit stuck the plastic cracked and broke on the stand so the quality isn't that good but they are cheap so cheap.