20 white pebbles for gas fires, fire pits, ethanol burners and all other living flame fires. This item is made up of 10 large white pebbles and 10 smaller pebbles. This gives a natural look to your fireplace. Use these pebbles to replace old tired pebbles or coals without the expense of a whole new fireplace. Large pebbles are approximately 6cm x 5.5cm (2.4inch x 2.2inch). Smaller pebbles are approximately 4cm x 3.5cm (1.6inch x 1.4inch)