Compact version of the Grid revolutionary foam rollerFeatures matrix technology and distrodensity zones to provide a unique targeted massage to increase circulation and help maintain flexibilityComplements recovery process with improved blood and oxygen flowDurable design won't break down with repeated useSmall size is perfect for travelling, it attaches to any gym bag, backpack or can easily fit inside your suitcaseSize: 5 x 5.5 inchesUK specifications