Zip String Safety Razor ThinkFun’s Fifteen Puzzle provides hours

ThinkFun’s Fifteen Puzzle provides hours of entertainment and brain-stimulating fun

The nicest rain you will ever smell

Truly a multifunctional canvas crossbody bag having a front pocket and adjustable shoulder strap

the result of slub spun cotton

Zip String Safety Razor ThinkFun’s Fifteen Puzzle provides hoursZipString is a mesmerizing toy that floats a seemingly standard loop of string in the air. It carefully balances several forces of gravity, lift, tension, and drag to fly the string in the air. Any movement that a Zipster (a user of a ZipString) does, the string follows. Because it follows, the tricks and games you can do with it are endless! ZipString is an extension of you. The string follows all your movement.