Filled with small plants or other decorations and used as a striking decorative focus for any space, suitable for home, office, garden, wedding or holiday decoration. They could provide you housewarming with good decor. Specification Material: High Boron Silicon Glass Glass Bottle Size: 100 x 85mm / 3.9 x 3.3 inch (L*W) Glass Bottle Neck Diameter: 46mm / 1.8 inch Package List: 4 x Hydroponic Vase; 4 x Nail Hooks Advantage The terrariums are made of high boron silicon heat-resistant glass, not easy to break, have smooth surfaces and have good permeability. Easy to install and remove for cleaning or replacing water for plants. Great for floral arrangement, home decoration as well as various gift ideas. Instruction A small hole at the top back of each pot that convenient for hanging this plant holder on the wall with a white nail hook. NOTE: Treat the glass vase carefully when installed. Suggested to install the nail hook with a hammer.