The 5 Pack Bundle Lot Realm Zone Mosquito Repellent Refills by Repel offers long-lasting protection against mosquitoes for outdoor activities. These liquid refills are designed for outdoor use, providing a 40-hour prevention time. The product is EPA registered, odorless, and rechargeable, making it a convenient and effective solution for keeping mosquitoes at bay while camping, hiking, or engaging in other outdoor adventures. Made of plastic and weighing only 0.07 lb per refill, this product is lightweight and easy to transport for a hassle-free outdoor experience.