Ant Farm Shading and Universal Laboratory Test Tube Clip: Customizable C-Type Circular Tube Clip for Easy Shading Paper Installation/Removal and Cylindrical Pipe Fixing Bracket

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https://makerworld.com/collections/16520219

This small C-shaped clip is designed to be sturdy, primarily to solve two problems: first, to easily wrap test tubes with light-blocking paper, and second, to securely hold test tubes in place

It has an opening on the side, like a small clip, that simply clips onto the test tube. Putting on or removing the light-blocking paper is particularly easy, allowing you to conveniently create a dark and comfortable environment for your pet ants

In addition, the handle on the back not only makes it easy to attach and remove the shading paper but also allows it to stand on its own. When placed on a lab bench or workbench, it can also serve as a small stand to secure other items. The most convenient part is that you can fully adjust the dimensions of this clip according to your needs. Simply input the diameter to generate a clip that can hold any circular tube, and of course, you can also adjust the wall thickness and width yourself