It's available in both left and right hand which is larger than expected and works well with my P51. It's a lot simpler here than Lenovo.
Natural Winsome Baldwin Bed Tray
11 Review
REDCAMP Foldable Laptop Table for Bed, Lightweight Small Laptop Desk Bed Tray for Adults - Ideal for Eating, Picnics, Writing - White
11 Review
LITEPRO Laptop Desk for Bed with USB Cooling Fan and Foldable Legs - Portable and Adjustable Tray Table Stand for Sofa, Couch, and Floor
11 Review
AMERIERGO Lap Desk - Optimal Comfort for Laptops Up to 17 Inches
11 Review