The ice gripper tip features a slip-resistant metal prong that digs into ice and snow to give a better grip to the ground. This revolutionary design is the first ice gripper tip that can be used both indoors and outdoors. When you venture outdoors and need the extra traction, simply pull the built-in metal prong down. The prong is easily pushed back into the rubber tip when you are indoors, making the ice gripper tip a highly functional and safe solution to your winter mobility needs. This new tip design is so easy to use you will wonder why it was never created years ago.