8.31 x 5 x 2.28 inches

Make sure this fits by entering your model number. Natural Polished Gravel:This river rocks are natural lightly polished for smooth effect, comes in a variety of natural colors， Resists fading for long-lasting beauty. The color of this river rock is natural so it may include a variety of different shades of browns, whites and black rocks.you can add beauty to all your needs Pebbles Decorative Stones Aquarium Gravel ：Natural Stones，aquarium gravel ，river rocks，fish tank gravel，succulent soil ，paperwhite bulbs, potting soil,succulent soil mix,cactus soil,potting soil for indoor plants,vase filler,terrarium supplies.(rocks are natural and as a result some may be broken or out of shape, oval or round, thick or thin)