EUROLITE Filter Frame Theatre 650/1000 bk is an octagonal lighting accessory made of 1 mm metal with a black finish. It is designed for spotlights with a 20 x 20 cm filter-frame slot and features a 22 x 22 mm grid size. The frame measures 19.6 cm in length and width, has a 17.1 cm diameter, and weighs 0.10 kg. It is intended to hold lighting filters or other compatible media in front of the spotlight.