GD/SV: The inner layer is 33cm, the outer layer is 49cm, and the extension chain is 5cm
GD1: Chain 42 + 5cm wide 1 * 3.3cm height
GD/SV: The inner layer is 33cm, the outer layer is 49cm, and the extension chain is 5cm
GD1: Chain 42 + 5cm wide 1 * 3.3cm height