I have not got the clamp. Was attached using the block of wood and the threaded pole with wing nut.
eBay
Desktop Computer Monitor Stand Riser Base Display Screen Support Stand Keyboard Tray Holder for Home Office Organization
Aliexpress UK
✔️3-Level Adjustable: Heights at 10cm, 12cm, and 14cm. Max Load 20kg. ✔️Space Saving: Storage underneath for keyboards & mice. Model: NZ-STAND-01 | Ergonomic Workspace Solution. ✔️Heavy Duty: Supports up to 20kg with anti-slip rubber feet.
eBay
360° Portable Monitor Stand for 12”- 17.3" Adjustable Swivel Bracket Tablet Holder Compatible with Tablet Desktop Clamp Stand
Aliexpress UK
Easily find the right viewing angle for your workspace. Sturdy Single Monitor Stand - With the high-grade steel material, monitor arm is such sturdy to hold 13-32” flat or curved monitors with VESA mount hole 75x75 or 100x100.
eBay
Computer Elevated Stand Desktop Monitor Stand Office Supplies Drawer Storage Box Elevated Base Desktop Storage Rack
Aliexpress UK
(PC up to 22KG). Wearson Monitor Stand Riser.
eBay
Monitor Stand Riser, With Foldable, Height Adjustable Computer Stand, Desk Shelf Riser with Storage Drawer &Tablet Phone
Aliexpress UK
Made of wood-plastic composite material, it is no paint, odorless, eco-friendly and easy to clean. Adopting traditional mortise and tenon joint design, the monitor riser is easy to assemble, no more tools required.
eBay
Monitor Stand Riser, Foldable, Height Adjustable Computer Stand, Desk Shelf Riser with Storage Drawer &Tablet Phone
Aliexpress UK
TekBox’s Twin Desk Monitor Riser is perfect for making more office space by raising your computer screens. The riser allows your keyboards or office supplies to sit underneath the desk stand which has enough space for two computer screens.
eBay
360 Fold Portable Monitor Stand for Desktop Installation with A 15.6 "16" Screen, An Aluminum Long-arm Rotating Tablet Stand
Aliexpress UK
Adjustable for Ergonomic Workspace Comfort. Transform your workspace into an ergonomic haven with our Stylish Ventilated Monitor Stand. With its adjustable height settings, you can easily tailor your viewing angle for maximum comfort, while the perforated design ensures adequate airflow to prevent overheating of your devices.
eBay
Z3 Modular Monitor Stand Multi-Functional Desk Organizer Height Increase Computer Desks Ergonomic Laptops Stand for Home Office
Aliexpress UK
The Adjustable Monitor Stand is a sleek black rectangular metal riser with 3 height levels (100/120/140 cm) to suit your workspace needs. It is designed to be ergonomic, helping to reduce neck and eye strain while you work or view your monitor. The stand is easy to assemble and has a load capacity of 20 kg, making it sturdy and reliable for holding your monitor securely in place. Its space-saving design and tripod form factor make it a practical and stylish addition to any desk setup.
eBay
H20 Modular Sliding Monitor Stand Accessory Adjustable Mechanical Arm for Laptop Stand Space Saving Desk Organizer for Office
Aliexpress UK