Features: Premium high density light seal foam with adhesive backing ensures 99% light blocking efficiency for professional grade film camera maintenance and light leakage prevention. Features 2/3/4mm thick foam sheets (100x200mm), paired with smooth carbon tweezers for easy installation. Ideal for camera enthusiasts, professional photographers, and DIY repairers for 120/135 film cameras requiring reliable light seal replacements. Perfect for outdoor use under direct sunlight or in low light environments, safeguarding film integrity during long exposures or photography. Engineered with aging resistant materials to withstand humidity and temperature fluctuations, ensuring long durability for frequent camera backdoor resealing tasks. Specifications: Component: Sponge Size: Approx. 100x200mm / 3.93x7.87 inch Thickness: 2mm / 3mm / 4mm Package Includes: 1 Pc Leak Proof Sponge, 1 Pc Tongs Note: Please allow 1-2 cm errors due to manual measurement. The image may not reflect the actual color due to monitor differences.