I sell my unique work on Earth. My work is made of gray-gray limestone 48kg., From and in Mexico. It is a well-developed rectangle 27x20x33.5 cm., Within which this free sphere-10.3 cm., Loose, carved and polished inside the block, of the same rock of the rectangle. There is an entrance for the hand in the block, to find and touch the sphere. The sphere will never come out, because it is bigger, than the entrance. It is the only probability and experience of human in your life. The sphere has life - it is always covering the entrance, until someone touches. The sphere represents Mother Earth, Life. My work is in c. Bilbao, Spain