Enhance your plant propagation with our 3D printable Growth Spiral Test Tube Holder. Designed to hold a 25mm test tube, this stylish holder can sit on your windowsill or be hung on the wall, making it easy to propagate plant cuttings while adding a cool touch to your space. Perfect for personal or commercial use, this royalty-free file allows you to print and sell with ease. Ideal for gardeners and plant enthusiasts looking for a functional and decorative solution.