A 3D model of child-friendly climbing wall components, featuring wooden cloud-shaped holds with circular holes and white fixing dots, in a playful, cartoonish design. It has a simple, safe structure, suitable for children's fitness and indoor play.

A 3D model of a bicycle, featuring a sleek blue frame, black handlebars, and rubber tires, with a modern minimalist aesthetic. It has high detail and smooth surfaces, suitable for fitness training and outdoor cycling.

A 3D model of a hang glider, featuring a triangular wingspan with blue and black fabric, metal frame struts, and a modern, streamlined aesthetic. It has high detail and is suitable for outdoor sports simulation or product visualization. (类目纠正：原Fitness Equipment不准确，应为Outdoor Sports Equipment/Hang Glider)

A 3D model of Boxing Training Gear, featuring durable synthetic leather, metal chains, and a sturdy steel frame, with a modern, minimalist white and black aesthetic. It has high polygon count, detailed textures, and is suitable for home workouts, professional training, and boxing practice.