Warm Tips: All the gravel is unperforated. After purchase, you can punch it by yourself as you want. Energy Healing Crystal: Amethyst, which contains high energy. Therefore, it can promote the activity of brain cells. Thus helping to think, concentrate, and enhance memory. For those who need a long time to brain, such as students, office workers, etc., it is very suitable for wearing natural amethyst jewelry. In Western countries, amethyst is considered to be the guardian “stone of love”, which can bring love, honesty and courage beween the lover. Decorative Stones: There are many ways to play these chippings' role. It can be vase filler, candle holder filler, for centerpieces, etc. It be can also used for artcraft or any creative handmade work. Stone for Decoration Details: Approx 1mmx3mm-4mmx10mm(0.04"x0.12"-0.16"x0.4"); Total Weight: Approx 460 Gram. Every polished stone is natural, so the shape is irregular and the color is different. The gravel you receive is unique. The pictures are for reference only, and the specific shape, size and color of the gravel are subject to the actual object received. Aquarium Gravel: These pebbles can decorate the garden. It has many usages, you can put it in a vase or a fish tank so that the fish or plants grow healthy under the influence of crystal gravel.