AOLISHENG Undermount Soft Close Drawer Slides Full Extension Ball Bearing Hidden Bottom Mount Rails Locking Devices 100LB - AliExpress
The Not-So-Secret Hidden Drawer - The Wood Whisperer
CONCEALED SLIDE
Drawer Slides Hidden Drawer Slides 250 mm 300 mm 350 mm Slides Under The Bottom Slide of The Desk Drawer Soft Close Drawer Slide 45 kg : Amazon.co.uk: DIY & Tools
A pair of invisible underbody guides, drawer slides for the showcase. Concealed drawer runners for high-end store fitting (left and right) C203V by Sugatsune / LAMP® (Japan)