A red variety of the mineral corundum, a ruby is technically a form of sapphire. Long associated with the heart, safety, and protection, the ruby is considered one of the four "precious gemstones."
Ease your mind with Electric Ruby Thinking Putty. It shimmers with a beautiful sheen that's illuminating and inspiring.
Each tin includes 1/5 lb of Electric Ruby Thinking Putty—a huge handful for tons of fun.