Photo 1 of OUGIC Ergonomics Desk Extender Tray, 21.7"x9.5" Punch-Free Clamp on, Foldable Keyboard Drawer Tray, Table Mount Arm Wrist Rest Shelf, Computer Elbow Arm Support 21.65"*9.45"(55cm*24cm) Maple

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Photo 1 of OUGIC Ergonomics Desk Extender Tray, 21.7"x9.5" Punch-Free Clamp on, Foldable Keyboard Drawer Tray, Table Mount Arm Wrist Rest Shelf, Computer Elbow Arm Support 21.65"*9.45"(55cm*24cm) MaplePhoto 2 of OUGIC Ergonomics Desk Extender Tray, 21.7"x9.5" Punch-Free Clamp on, Foldable Keyboard Drawer Tray, Table Mount Arm Wrist Rest Shelf, Computer Elbow Arm Support 21.65"*9.45"(55cm*24cm) MaplePhoto 3 of OUGIC Ergonomics Desk Extender Tray, 21.7"x9.5" Punch-Free Clamp on, Foldable Keyboard Drawer Tray, Table Mount Arm Wrist Rest Shelf, Computer Elbow Arm Support 21.65"*9.45"(55cm*24cm) Maple