Brand new sealed in box, purchased two from Mighty Ape a while back but now only need one. These look to be now out of stock.

https://gorillagaming.co.nz/products/gorilla-arms-quadruple-spring-powered-monitor-mount

The Gorilla Arms GA-414S Quadruple Monitor Mount allows for easy arrangement and adjustment of any workspace. Set your display at the perfect height, and adjust with ease for multiple users.

FEATURES Mechanical spring structure with adjustable tension Constructed from die cast aluminum Integrated cable management Easy assembly and disassembly

SPECIFICATIONS Model: GA-414S Application: 4× 15"-27" VESA Monitors VESA Compatibility: 75×75mm/100×100mm Weight Capacity: 3–6kg per mount Tilt: –90°~+85° Swivel: 180° Rotation: 360° Material: Aluminum alloy Spring Type: Mechanical