The K01 TPU Wheat Straw Case is an eco-friendly protective solution designed for a wide range of smartphones, including iPhone 6–17 series (including mini models), Samsung, Huawei, Xiaomi, OPPO, Google, and VIVO devices. Constructed from 40% soft TPU + 60% biodegradable wheat straw, it balances flexibility and sustainability, reducing plastic waste while delivering reliable defense. The case features hollow keys, anti-fall corners, and a heightened sloped camera frame (1.2mm higher than the lens) for enhanced usability and protection. With 1.5mm thickness, it offers anti-yellow, anti-fall, and waterproof performance, and supports customization of back shell patterns, making it ideal for eco-conscious users and branding needs.