Seller: gatoygatino (2,592) 100%, Location: Chepachet, Rhode Island, Ships to: Worldwide, Item: 252644445015 Large spring loaded boomer hinge. The finials are a sort of cathedral type, a little more fancy than your average boomer hinge. That being said I'm not really sure what a boomer hinge is, and not really sure how it works. I can't open it and I assume it is because the springs are too strong. I haven't pried it or put a lot of effort into it and it doesn't appear to be able to freeze up. Piece is a little dirty, has a bit of surface rust but overall in very good condition. Hinge measures 7 inches along the rectangular part with the screw holes and 8&7/8ths tip to tip along the finials. The rectangular part also measures just under 1&3/8ths inches wide, and the whole piece measures 4 inches wide at the widest. Take a good look at the photos as piece is being sold as-is. Save time & money with FREE Auctiva Image Hosting. Auctiva, The complete eBay Selling Solution.