Sufficient quantity and convenient design: you receive 30 LED flashlights with 30 battery strips. Please remove the protective film from the battery before use. The quantity is sufficient for easy use and sharing; the headworn design makes it easier to read, work, and explore. A bright headlight with three lighting modes: this bright headlight uses COB LED lamps to emit 800 lumens of light, providing a 160-degree wide beam to illuminate a large area; in addition, the headlight has three white light brightness modeshigh, low, and flashingwhich you can adjust according to the scene and usage requirements to meet your needs. Anti-slip and adjustable: the forehead band is lightweight, soft, comfortable, and anti-slip, bringing no heavy burden to the head; the size is approximately 6 x 4 x 1.7 cm / 2.36 x 1.57 x 0.67 inches, portable, flexible, and adjustable, suitable for different users, including adults and children; you can also wear the product on your wrist or other locations. Waterproof and durable: LED headlights are made of high-quality plastic housing and switch, waterproof and leak-proof, and can be used even in wet conditions; it is also suitable for running, walking, cycling, hiking, camping, fishing, and reading at night. Practical gift: portable and adjustable features make these headlights a practical gift for fathers, partners, boyfriends, and night runners on Christmas, birthdays, Valentine's Day, or other occasions. Color: blue + black Material: plastic Package Contents: 30 x head lights Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the real thing. Measurement allows an error of +/- 1-3 cm.