Suitable Range: Swim vest for children aged 2-7 years old and weighing 22-66 pounds, helping float in water and providing safety protection for swimming beginners. 3-In-1 Wearing Design: Pool float vest and sleeves connected by double buckles, adjustable and removable. Beginners can wear full vest armband, gradually reduce to vest only or sleeves only, eventually learn to swim independently. High Quality: Outer layer made of smooth scratch-resistant nylon fabric, protecting children's delicate skin. Interior filled with multiple layers of high-density quality cotton for good buoyancy. Safe And Reliable: Upgraded double safety buckles require 3 keys pressed simultaneously to open, preventing children from taking off vest without help. Note: Adult supervision required when using. Do not use if broken or damaged. Weight: 0.95 pounds.