https://hospitalbedkart.com/product/p-m-p-s-collapsible-bed-railing-one-pair-aluminum-brand-p-m-p-s/

Alumunium Bed Guard Rails with Sleek Design
Push Button Collapse thus Easy to Use
Contains- 2 pcs ( a pair for both side of bed )
Easy Installation by Anyone, No Technical Skill or Special Tool Required
Ideal for any Wooden Bed , Cot , Deewan or oHospital Bed