锈蚀金属长柄轮锤道具

白底道具设定图，竖幅居中构图，完整展示一件长柄轮状金属器械。主体为锈蚀棕褐色铁质：细长矩形长柄，柄上、下各有一组圆柱/矩形金属套件，顶端为圆环提环结构；底部连接厚重黑色近圆形轮盘，轮盘表面有块状裂纹或铸造纹理，中央为圆形锈铁轴心，并有两根斜向金属杆从轴心向左右伸出。写实材质渲染，概念道具设计，工业复古与奇幻风混合，白底无环境，正面平视展示，均匀柔光，清晰边缘，约1:3.1竖幅。

White-background prop concept design, tall vertical centered composition, full view of a long-handled wheel-shaped metal contraption. The object is made of rusted brown iron: a long narrow rectangular shaft with cylindrical/rectangular fittings near the top and bottom and a loop/ring at the top; at the bottom is a heavy matte black near-circular wheel/disc with a cracked or cast-segmented surface, a circular rusted iron hub at its center, and two diagonal metal bars extending outward across the wheel. Realistic material rendering, concept prop design, industrial-retro and fantasy styling, isolated on white, frontal product view, even soft lighting, crisp silhouette, approximately 1:3.1 vertical aspect ratio.