4pcs Platform Spring Turn Clamps Glass Bed Stable Clips 3D Printer Accessories

Wedge Pillow Body Support Pad Patient Bed Wedge Pillow Positioning Wedge Pillow. Made from stainless steel material of good quality, this fixation clamp for 3D printer is safe and durable for use. It is easy to install and does not hurt your delicate skin.

eBay