OK, so you read about the great new OBO Robo Chest Protector and now you have three choices for Arm Guards. You can use your current OBO arm guards and just get the chest protector (sku O170), you can get new Robo Elbow Guards (sku O171) or you can get new Robo Arm Guards (this sku!). Robo Arm Guards maximize your protection and arm coverage but are a bit less mobile than the elbow guards. The OBO Robo Arm Guards are used by many International goalies. Please see sku O170 for images and more information on the Chest Protector.