I received this from the gym I go to, but I have a lot of them, so I won't use them all. I have one extra, besides the one I use, so I'm putting it up for sale. Color: Blue Roller Size: Approximately 15.3cm in diameter, 8.6cm in width Pipe Size: Approximately 24.5cm in length, 2.3cm in diameter Grip Size: Approximately 10cm in length for the EVA part, 3.5cm in diameter Knee Mat Size: Approximately 34 * 16.4 * 0.6cm