EUROLITE Barndoors Theatre 650/1000 bk is a separately sold lighting accessory for adjusting the desired light beam. The barndoors are made of 1 mm painted metal and have a matte black finish. The fixture slot measures 19.8 × 19.8 cm. The ring has an outside diameter of 197 mm and an inside diameter of 172 mm. The product weight is 1.03 kg.