After lacing up his first pair of skates (Rollerblade Lightnings), Cliff Chi was struck by lightning (pun intended).
As an avid skater and roller hockey player, he was constantly rotating wheels with the allen key provided with the skates.
Frequent wheel rotations with the clunky allen key (Knuckle Buster) resulted in bloody knuckles.
During the day, he was an Air Force space systems officer. In the evenings, he tinkered with knuckle preservation ideas.
After a year of long nights & caffeine, the Gripz Inline Skate Tool (Knuckle Saver) was introduced.
Following the Gripz launch, Sonic continues monkeying with new products to help you skate better.