Our trademarked Mat-Loc™ Clips have been used for over 30 years by top automobile manufacturers to prevent mat slippage. In addition to our specially designed foam backing, Mat-Loc™ Clips help hold your mats in place. These are included in every floor mat order that does not have a grommet fastening system and are only available through GGBailey.com. Each pack contains two Mat-Loc™ Clips - one for the driver side and another for the passenger side floor mats.