Eyeglasses Strap 50pcs Silicone Eyeglasses Cord Chain String Anti Slip Glasses holder Safe Comfortable 17mm Or 20mm

Features:Material: SiliconeCord Length: Children type: 17mmAdult type: 20mm50pcsNote: 1(in)=2.54(cm),1(cm)=0.3937008(in).Due to light and screen difference, the item's color may be slightly different from the pictures.Please allow 0.5-2cm deviation due to manual measurement

• Flexible Elastic Construction: Designed with a stretchable and soft structure that delivers a comfortable fit around the head and ears without causing pressure or discomfort during extended wear
• Secure Anti-Slip Hold: Provides a stable and reliable grip that keeps eyewear firmly in place, reducing unwanted movement or shifting during active movement and daily use
• Universal Frame Compatibility: Works smoothly with most types of eyewear frames, offering a consistent and dependable fit for various styles of glasses and sunglasses
• Simple Adjustable Fit: Equipped with an easy-to-use sliding mechanism that allows quick and precise tightening or loosening to achieve a personalized and comfortable fit for all users
• Versatile Activity Compatibility: Suitable for a wide range of indoor and outdoor activities, delivering consistent performance during workouts, sports, travel, and everyday routines