Light Seal Kit fits the Mamiya RB67/RB67 Pro/RB67 Pro SFilm Cameras High-Density Sponge Function: For Mamiya RB67/RB67 Pro/RB67 Pro S camera light seal replacement. With time by, film camera light seal foam aging and lead to light leakage, we have to replace new light proof seal. Features: 1. Made with quality Neoprene foam. 100% Synthetic material. 100% Cruelty-free. 2. Precise cutting dies are developed for each model, each parts are cut by precise cutting dies to fit camera, precise and flat. 3. Save your time and effort in replacing the old and deteriorated seals. 4. High quality 3M double sided tape used. 5. HIGH-DENSITY Foam Imported From Japan, superior quality. Packing and Cutting in China. 6. Multiple kits ensure a successful installation. Package: The camera is not included. Seal foam sheet x3 Bamboo stick x1 Carbon fiber tweezers x1 Cotton swab x1 Installation manual x1 PS: Sizes are exact match for Mamiya RB67/RB67 Pro/RB67 Pro S. These kits are readymade, you don\'t have to do anything in it(all cuts are already made in it). Purchase it and put it straightway to your camera. Installing the kit on your camera is very simple,We have provided 3 foam kits in one set so you don\'t have to worry if you waste one or two foam kit. Please follow the installation. Even if you fail to install the first or second kit, we strongly believe in the third kit must be able to install successfully.(Tip: If you can\'t see each sponge clearly, you can fold it several times and then you will see the cut marks more clearly, and then pick it up with tweezers.) NOTICE: Please allow 24 hours for the adhesive layer to cure, i.e. open the film door and let the foam sit for a day. Replacing camera light seal takes time and patient. We suggested to use a piece of paper as shutter protective film to prevent damage to the shutter curtain during application.