Protective brass case for 40mm smartwatches, Color B. Designed to deliver reliable daily protection while maintaining a secure, easy to use fit. Key benefits Durable brass housing provides solid protection against everyday bumps and scratches. Secure grip design with textured inner teeth that wrap the watch body firmly, reducing the chance of accidental detachment during daily activities and exercise. Easy to install and remove for quick band changes and maintenance. Precise workmanship and a modern appearance that complements the watch without adding bulk. Compatible with 40mm Apple Watch models and standard 40mm watch bands. Features Size: 40mm, engineered to match 40mm watch cases and band connectors. Material: Brass housing for strength and long term wear resistance. Simple operation: snaps on and off easily and holds tightly in place once fitted. Stable fit: designed to remain secure during movement, sports, and routine use. Practical use scenarios Everyday wear: add a durable layer of protection to prevent scratches and surface damage from keys, door frames, and daily handling. Sports and exercise: secure grip and sturdy construction help keep the watch in place during running, gym sessions, and outdoor workouts. Travel and outdoor activity: shields the watch body from incidental impacts and abrasions during hiking, commuting, or recreational activities. What you get A well made 40mm brass protective case in Color B that fits standard 40mm bands and offers simple installation, reliable retention, and refined appearance for everyday and active use.