Pink color changing ruler printed with Warning: Use may result in extreme crafting
4.96 from 164 reviews on Judge.me

Knitting Tools

Color Changing 'Mood' Ruler

$2

The only ruler that warms up to you. This 12 inch ruler from Yarnable changes color with the heat of your hand, so every inch of ribbing and every sleeve length you check comes with a color change.

Flat-rate $7 shipping on all US orders

The only ruler that warms up to you. This 12 inch ruler from Yarnable changes color with the heat of your hand, so every inch of ribbing and every sleeve length you check comes with a color change.

Hand-dyed in New Hampshire
Easy 14-Day Returns
Made for makers, by makers
Ethically sourced

More Notions

Every project needs a sidekick

Verified reviews

Rave reviews in every hue

“Love the yarn and have had so much fun knitting it up!”
Elizabeth D.Verified buyer
“The colors are very vibrant and saturated, the yarn is so squishy and soft. I wish I crafted faster so I could make all the things faster.”
DavaVerified buyer
“I love everything I purchase from Hypnotic Yarn. I love the bright bold and saturated colors, especially the hot pink, turquoise, bright purple.”
Rose H.Verified buyer
“Fast shipping, quick communication and wonderful customer service! I have never had a problem with my orders from Hypnotic!”
Carrie P.Verified buyer
“Cheryl, Jess and her entire team are wonderful, their yarn is gorgeous and so soft! Highly recommend!!”
Laurie B.Verified buyer
“The best hand dyed yarn around! Smooth and soft, plush and durable! Pretty no matter what color you choose!!!”
Rebecca B.Verified buyer