The Phantoms have a magic all their own as they react with vibrant colors to UV light. Using the included blacklight keychain, you can actually draw and decorate the putty! Each tin is hand packed with 1/5lb of Thinking Putty - One blacklight keychain is also included in the tin. Made in the USA! Arctic Flare Thinking Putty has an icy shimmer that reveals its true colors with the included blacklight keychain (in the tin). In a flash, white becomes red with an eerie fire glowing edge. This putty also glows orange in the dark for about an hour! Best played with under regular room lighting so you can see both the daytime and nighttime colors simultaneously! Hold the blacklight keychain close to the putty to draw a dark line, and move it farther away for a blurry line.