A 3D model of an exercise ball, featuring a round, brownish shape and minimalist design. It has a low polygon count, suitable for core training and fitness workouts.

A 3D model of a billiard table, featuring a green felt surface, red and white balls, wooden frame with golden decorations, and a traditional aesthetic. It has high polygon details and is suitable for home entertainment and leisure activities.

A 3D model of a Jet Ski, featuring a red body, white seat, and a sleek, sporty design aesthetic. It has low polygon count and is suitable for water sports scenarios. （类目纠正：原Fitness Equipment不准确，实际为Water Sports Equipment，故核心对象调整为Jet Ski，更符合水上运动器材属性）

A 3D model of a basketball, featuring brown leather-like texture and black stitched lines, with a sporty design aesthetic. It has low polygon count and is suitable for fitness and sports training.