Hercules USP20CB Ukulele Clamp

The HERCULES Ukulele Clamp USP20CB features the Auto Grip System (AGS) yoke and a fully adjustable clamp that allows you to attach the hanger to various instrument stands and desks.

• The Auto Grip System safely locks the instrument in place. It can accommodate ukuleles of all sizes from soprano to baritone.
• The fully adjustable clamp can be attached to any tube or desk within the following dimensions:
  15.8 mm – 30 mm (0.62″ – 1.18″) round tube
  18 mm – 25.4 mm (0.7″ – 1″) square tube
  10 mm – 25 mm (0.39″ – 0.98″) thicknes

https://www.oosthavens.co.za/product-category/audio-visual/av-stands-accessories/music-stands/