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Metal cornerbead, L-bead, and Jbead have long been the stock in trade of drywall finishing, mostly because builders don't know what's available. When odd angles can't be avoided, they're usually handled with specialty tapes, such as Sure Corner or Flex-Corner and lots of mud. Special effects, like trimless drywall returns on doors and windows, are possible, but there's a limit to what you can do with standard accessories. A wide variety of specialty trims, however, offer alternatives to the usual crisp, straight corners and flush edge treatments. Specialty trims make it possible to build details that are too difficult, and therefore too expensive, to produce by hand. Tape-On Curves Although an experienced taper can create a rounded corner, it's easier and produces