Description This adjustable chin strap is designed to enhance the stability and comfort of your cycling helmet. Featuring a user-friendly knob for circumference adjustment, it ensures a secure fit during mountain biking or other outdoor activities. The sturdy strap material provides reliable support, making it an essential accessory for helmet. Features -Color:Black -Material:Plastic -Size:30.00X3.50X2.00cm/11.79X1.38X0.79in -Convenient adjustment knob: features an easy to use knob for quick and precise circumference adjustment, ensuring a snug and comfortable fit during cycling -Secure chin strap system: equipped with a high efficiency chin strap buckle that stabilizes the helmet, minimizing movement and enhancing safety during intense rides -Lightweight design: made with lightweight materials, allowing for extended wear without discomfort, ideal for long distance cycling -Versatile usage scenarios: suitable for various activities, from mountain biking adventures to urban commuting, providing reliable protection and comfort -Easy installation and compatibility: designed for effortless installation and removal, compatible with a wide range of helmet models for added versatilityPackage list: 2 x Cycling helmet chin strap