OO/4mm/1:76LX322-OO CIRCULAR WALL VENTS PACK OF 10 Laser Cut Self-Assembly Kit For OO Scale Model Railway LayoutsA pack of 10 laser cut circular industrial wall vents for use on OO & 1:76 scale scratch-building projects. Ideal for factories, warehouses, engine sheds & more.Key Features:10 circular vents including laser etched brick surroundCan be quickly and easily painted using acrylic paintsVent fits into an 18mm diameter hole. Total diameter, including brick surround once assembled is 22mmDeluxe Materials Roket Card Glue highly recommendedAll kits are produced at and dispatched from our Studio in Cornwall in Board Backed, DO NOT BEND envelopes ensuring our kits reach you just as they should!Postage is charged at a flat rate of £3.