This is a Lot of 4 Delta Glide-100 Drawer Glide Systems, Track Guides (also known as delta plates or delta glides). They are white plastic replacement pieces used for a monorail (single center track) drawer slide system.

INCLUDED ARE 8 low-friction roller drawer guides or support pads.

* Purpose: It mounts to the back of a drawer box and glides smoothly along a central metal track inside the cabinet.

* Design Features: It features a wide triangular layout (delta shape) that provides a large bearing area to stabilize heavily loaded drawers and reduce side-to-side rocking.

* Common Applications: This style is widely found in residential kitchen cabinets, older furniture dressers, and built-in mobile homes and RV's.

This drawer track delta guide is constructed from white polyethylene. 

This type of guide has a 6-point contact that reduces lateral movement of the drawer.

• Mounting hardware is not included

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• INCLUDED ARE 8 low-friction roller drawer guides or support pads, manufactured by Delta Industries under U.S. Patent Number 4,236,773.

• * Function: These brackets are mounted inside cabinet frames (typically near the front) to support the drawer sides, allowing them to glide smoothly and quietly without grinding.
• * Application: They are widely used as direct replacement hardware for standard Delta monorail drawer slide systems commonly found in household cabinets and RV furniture.