Normal design. The implementation is wrong. If the thinnest part - the bottom arch - was 30% thicker, the rating would be five stars.
Ultimate Titanium KeySmart: A Must-Have Organizer for Men's Accessories
49 Review
Premium Handmade Warranty Men's Keyrings & Keychains by Hide Drink Accessories
45 Review
KeySmart Magnetic Keychain Secure Attachment Men's Accessories
63 Review
TISUR Titanium Keyring with Side Pushing Design - Stylish Men's Accessory in Keyrings & Keychains
31 Review