黑色磨损皮质长套静物

写实产品静物摄影，纯白无缝背景，黑色长条形皮质刀鞘或收纳套横置居中。整体呈哑光黑色，表面有细微磨损、划痕与颗粒状皮革纹理；左段为扁长矩形套身，中部有一道横向矩形加固带或束带，右端连接较宽的方形圆角皮块，边缘圆润，低反光。正面平视机位，横向宽画幅居中构图，柔和均匀的棚拍布光，黑色细节清晰，画面无文字，比例约9:2。

Photorealistic product still-life photograph of a black elongated leather sheath or pouch lying horizontally centered on a pure white seamless background. The object is matte black with subtle wear, scratches, and grainy leather texture; a long flat rectangular body on the left, a transverse rectangular retaining or reinforcement band in the middle, and a wider rounded rectangular leather block at the right end. Frontal eye-level camera, wide horizontal centered composition, soft even studio lighting, low reflection, crisp dark details, no text, aspect ratio about 9:2.