Mice devoid of all known thyroid hormone receptors are viable but exhibit disorders of the pituitary

Disclosed herein is a structure for the holding of sun-reducing glass in an automobile. One feature is that the rotation of sun-reducing glass is so light and convenient that the sun-cut glass can be turned to any desired position. The clamping device can hold the sun-reducing glass firmly so that it is immovable during the continuous vibration of the vehicle and it won't disturb the view of a driver.