The 4 Pack Bundle Lot Realm Zone Mosquito Repellent Refills by Repel is a convenient and effective way to keep mosquitoes at bay during outdoor activities. These liquid refills are specifically designed to provide up to 40 hours of prevention with each use, making them ideal for camping, hiking, and other outdoor adventures. The odorless formula is easy to apply and is EPA registered for safety. Each refill comes in a green plastic container and is rechargeable, making it a cost-effective solution for pest control. Made in the United States, this mosquito repellent refill is a must-have for anyone looking to enjoy the great outdoors without the pesky bugs.