Suggested use- attach to the Toast Go hand held unit Adjustable Range: The  strap is adjustable from 37.5''-59'' in length and 1.26'' in width, which can be adjusted to your desired length, and can be used by both adults and children to ensure the best comfort and experience. Comfortable and Breathable: Compared with traditional shoulder straps, the width of the shoulder straps makes it more even on the shoulders, which reduces the pressure when carrying it for a long time, and allows you to enjoy the fun of wearing the shoulder straps. Durable Material: The  strap is made of high-quality woven nylon for excellent durability. This material not only withstands the wear and tear of daily use but is also breathable and easy to clean, ensuring reliable long-term use. Quick Detachment: The buckle can be easily and quickly put on and taken off to accomplish a quick detachment. The non-slip surface feature keeps the neck strap lanyard securely fastened to your shoulder and prevents it from slipping off, making you feel more relaxed during your activities.