Size: Banana nest size: XS: longest 60CM, widest 35CM, inner length 40CM, inner width 22CM, height 10CM, (suitable for pets within 2.5kg) S: up to 70CM, widest 42CM, inner length 47CM, inner width 25CM, height 15CM (suitable for pets up to 5kg) M: The longest is 85CM, the widest is 48CM, the inner length is 57CM, the inner width is 30CM, and the height is 18CM (suitable for pets within 10kg) L: The longest is 100CM, the widest is 55CM, the inner length is 65CM, the inner width is 38CM, and the height is 23CM (suitable for pets within 20kg)