People with the ISTP personality type love to explore with their hands and their eyes, touching and examining the world around them with an impressive diligence, a casual curiosity, and a healthy dose of skepticism. They are natural makers, moving from project to project, building the useful and the superfluous for the fun of it and learning from their environment as they go. They find no greater joy than in getting their hands dirty pulling things apart and putting them back together, leaving them just a little bit better than they were before.
It's a very nice diamond iPhone case with design.