Flat lined metal curtain rings have a plastic insert on the inside of the curtain ring.
 
This plastic piece provides a smooth silent draw along the curtain pole when opening and closing curtains.
It also helps to not scratch and damage the pole when the rings are sliding on the pole.
 
The meatal ring is flat instead of rounded, creating a professional and sophisticated touch to your curtain pole. 
Key Features: 

• Lined 
• Silent 
• Exact colour match 
• Strong hook for holding curtains 

Includes: 

• 8 Rings 

Additional Information: 

• Size: 40mm x 62mm (including hook)