This appears to be a bath board (transfer bench) made by Panasonic. It's an assistive device designed to make getting in and out of the bathtub safe and easy. It's placed across the edge of the bathtub, allowing the user to sit down and stabilize their posture before entering or exiting the tub. It's helpful for those with unstable legs and lower back, or those who need assistance with bathing. The sliding design allows for secure internal adjustment to fit the size of the bathtub. Non-slip rubber is attached to prevent scratching the bathtub. Stainless steel is used in the core material of the main body to enhance safety. Width: 30cm, Length: 73cm, Thickness: 2.8cm Please refrain from purchasing if you are sensitive to items that have been stored at home.