Diameter: 25 cm. the glass part is made of 1st class polycarbonan heat-resistant and unique material and is smoked in color. height from ceiling: 70 cm. it can be stretched and shortened. cap length: 6.5 cm. cap thickness: 2 mm. the bulb is not included in our product. it is made of plastic material, which is a mixture of abs and polycarbonate, and a special sandblasting technique is applied on the surface. more than 100 stocks are offered to be sold at the campaign price. Improved version for clearer understanding and better search visibility. Suitable for users seeking detailed and reliable product information.