Sizes are approximately square 2.75inx2.75inx0.375 Round 2.875in diameter 0.4in thick Round big thick 3.625in diameter 0.8inches thick Selenite charging plates in their natural Round shape. Top-quality beautifully polished on each side and ready to charge your crystals effectively. HAND MADE - Crafted by hand and size may vary slightly. ENERGY CLEARING - Selenite is a crystal that does not retain negative energy or vibrations. It is also commonly used to cleanse other crystals and gemstones of negative vibrations. In order to vibrate at their highest capacity, your crystals need to be cleansed and charged. That’s where a Selenite Charging Plate can come in handy.