It doesn't matter how old you are: color changing items will always be awesome. So if you're in the market for a promotional ruler, say hello to the Mood Wood Ruler (6") from Quality Logo Products^®. These thick, sturdy wooden rulers are a fun and unique way to market your brand, business, or cause.

Clients of all ages will adore your Mood Wood Rulers!

• Multiple colors to choose from
• 6" long with measurement increments included
• Changes color from the heat of your hand
• Proudly made in the USA
• Perfect for community education programs, schools, banks, and art programs

When we call these rulers sturdy, we mean it. We tried breaking one of them with our hands and then stepping on it, and we couldn't get it to snap. And while the Mood Wood Ruler does require an extreme temperature change to change color, most people will be able to make the magic happen by holding it in their hands for a few seconds. Alternatively, rubbing it rapidly is another way to get the second hue to appear.

Extreme temperature change is required for color change to take place.