The color is a beige that is close to white. The strap is removable. There are some stains on the back of the strap and the bottom. Please check the photos. I used it once and then stored it at home. I think it's clean except for the stained areas. Length (bottom): Approximately 21.5 cm Height: Approximately 16 cm Width: Approximately 9 cm Please only purchase if you understand this.