Moyishi Transparent Glass vase Flowerpot Plant hydroponics Glass Hanging Plant Terrarium/Votive Holder (15cm) Made from premium quality borosilicate glass - which is harder and more shatter resistant than regular flat glass. It is highly heat resistant, so you can confidently put votive candles inside . We use glass up to 50% thicker than our competitors making our terrariums much more durable and usable. Can also be used with votive candles, great for children's art projects Thread string or fishing line (not included) through the small round hole near the top to hang each of these glass globes wherever you wish. there are 3 size for choosing:10cm,12cm,15cm Studies have shown that having decorations, flowers, candles in your home are directly related to elevated level of happiness and a reduction in depression.