This is my new gripper installed on my shoe. It has about 20% more grip on the ice than a regular gripper and the words used by players that have tried it say Wow. I have found out that the colder it gets the better traction there is. To install it on your shoe place the smooth side down on the ice and step on the large portion of the gripper and pull the black vinyl tab over the toe of your shoe. Then lift up your heel and pull the back of the gripper over your heel. The composition and design of the rubberized elastic gives it the traction on the ice. I have been using it for 60 games this season 2012/2013 and it has held up really well compared to others I have used in the past. NO BLACK MARKS on the ice.