Features 1.APPLICATION: Trident base NAB adapter is designed for Studer for Revox opener reel to reel recorders, suitable for A77 B77 B67 PR99 A700 C270 A810 A807 C270 C274 A67 etc. 2.STAINLESS STEEL SCREWS: Screw is made of high strength stainless steel, rust proof, corrosion resistant, stable and durable. 3.WITH SCREW SLEEVE: Reel to reel tape recorder trident base NAB adapter with screw sleeve, exquisite workmanship and beautiful appearance. 4.EASY TO INSTALL: Reel to reel tape recorder tray base with installation and maintenance parts, screw sleeve can be removed, quick and easy to use. 5.PRODUCT LIST: Product set includes 1 aluminium alloy reel to reel recorder tray base, 1 spring, 1 screw, 1 screw sleeve. Specification Item Type: Reel To Reel Tape Recorder Tray Base Product Material: Aluminum Alloy Color: Silver Applicable To: for STUDER for REVOX Opener Reel to Reel Recorder Suitable For: for A77 B77 PR99 A700 C270 A810 A807 C270 C274 A67 B67 Etc. Package List 1 x Tray Base 1 x Spring 1 x Screws 1 x Screw Sleeve