This is a LifeStraw Universal Water Filter Bottle Adapter Kit that fits select bottles. The kit is brand new and designed for portable water filtration. The package dimensions are 8.27 x 2.68 x 13.31 inches, and the product dimensions are 2.5 x 7.3 x 2.5 inches. The package weight is 0.57 pounds. This adapter kit is perfect for camping and hiking enthusiasts who want to ensure they have access to clean and safe drinking water while on the go.