Helinox Vibram Ball Feet Set Blue 45mm. Specifications for Helinox Vibram Ball Feet Set: Manufacturer: Helinox Size: 45 mm Quantity: Pack of 4 Height: 1.75 in Included Accessories: Carrying Case Gender: Unisex Age Group: Adults Fabric/Material: Vibram Rubber Weight: 8 oz Package Contents: Helinox Vibram Ball Feet Set Helinox 12788: Vibram Ball Feet Set Blue 45mm