Solve the "problem of where to put things" at the gym! This is a magnetic water bottle bag that is convenient for gym and training sessions. It has a powerful built-in magnet that securely attaches to training machines, metal racks, and other surfaces. It can store small items like smartphones, keys, cards, and towels all together, solving the "where to put things" problem during your workout! The surface is waterproof, making it easy to clean by simply wiping off sweat or water droplets. Its simple and easy-to-use design is versatile for the gym, home workouts, and outdoor activities. Comes with a detachable shoulder strap. [Features] - Securely attaches to metal surfaces with a powerful magnet - Can store smartphones and small items together - Waterproof material is resistant to sweat and water - Ideal for gym, weight training, and fitness - Simple, unisex design [Product Specifications] - Color: Black - Material: Waterproof leather coating + Polyester + Powerful magnet - Size: Approx. 11 x 28 x 18 cm - Weight: Approx. 260g *Magnets only adhere to metal surfaces. *Holding power may vary depending on the usage environment and installation surface. *As this is an overseas product, there may be slight sewing misalignment or minor scratches.