Grins In Gray | Garden ArtThe Largest of all the garden rocks in my collection. Mr Boulder will be sure to make you and your friends smile. He will be the hit of your garden, patio or porch. He was slip cast and then fired in my kiln and painted with acrylic paints. I have sealed him so that he can withstand all but the harshest weather. He is hollow so perhaps you could hide a spare key inside. * Full of Character * Outdoor safe * Makes a great housewarming gift * Sturdy yard