简约风手部锻炼器材实物商业照片

Adjustable spring hand gripper, silver alloy main body, black non-slip rubber handle with raised dots, exposed coiled compression spring, metal adjustment knob, lever mechanical structure, hand fitness equipment, solid pure white background, 45-degree side view, centered composition, soft shadowless studio lighting, 8K ultra HD commercial product photography, macro shot, clear metal texture and rubber grain, matte silver metal, industrial fitness gear, photorealistic, sharp details