Diving Warning Light Stick, Alert Flashlight, Gift for Diver, Red Flashing Feature: 1. High‑quality, stable and bright LED lights, red, green, and white are optional, with two modes of constant light and flashing. 2. Comes with plastic hooks, which can be installed on diving equipment such as elephant pull and BCD at will. 3. Made of high‑quality and waterproof materials, so it is very durable and reusable. 4. Multiple waterproof protection, 91 meters underwater can still be waterproof. 5. Three small LR44 button batteries are installed, which can last for 50 hours. Specification: .Item Type: Diving Light Material: Plastic Product Size: Approx. 11.5 x 1.6 x 1cm / 4.5 x 0.6 x 0.4in Plastic Hook Length: Approx. 3.3cm / 1.3in Weight: Approx. 57g / 2oz Battery: Button Battery LR44 x 3 160mAh (1pcs), Delivery with Battery. Package List: 1 x Light3 x Button Battery