Description: 【Sturdy Nylon Material】: These badminton grommets are crafted from quality nylon, offering great durability and flexibility compared to metal alternatives, ensuring long term performance 【Comprehensive Protection】: Designed to prevent collapse inside the string tube of badminton rackets, these badminton grommet provide essential support for both single and double string holes 【 Dimensions】: Each badminton racquet grommets eyelets measures 0.4 cm/0.16 inch in outer diameter, 0.25 cm/0.10 inch in inner diameter, and 0.05 cm/0.02 inch in thickness, making them perfectly suited for a snug fit within your racket's string holes 【Easy Installation】: For optimal results during installation, it is recommended to slightly expand the bell mouth after fitting the badminton grommets inner collapse rings into either single or double string holes to ensure a secure hold 【Value Pack of 50】: This package includes 50universal badminton racket racquet grommets eyelets, providing ample supply for multiple rackets or replacements as needed Specification: Material: Nylon Size Chart: Outer Diameter 0.4 cm/0.16 inch Inner Diameter 0.25 cm/0.10 inch Thickness 0.05 cm/0.02 inch Package Includes: 50 Badminton Grommets Note: Please allow slightly errors due to manual measurement and different monitors.