1. Elastic and : Made of highly elastic material, it has excellent durability and can be used for a long time without losing elasticity or breaking. 2. Multifunctional design: The power bank strap has a flexible design and can be applied to power of sizes and shapes. 3. and comfortable: The design not increase the burden, and the comfortable material makes you feel comfortable carrying it for a long time. 4. Safe and reliable: The strap has a solid structure to prevent the power bank from sliding or falling during movement, ensuring that it is safely and reliably fixed in the desired position. 5. Environmentally friendly materials: Made of environmentally friendly materials, non-, odorless, and non-irritating to the skin, protecting and the environment. Super elasticity: The elastic material has excellent stretch performance, adapts to sizes of power , and ensures firm fixation and is not easy to loosen. Colour:Black Material:Plastic Package Contents: 1 * for Head Strap Set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.