At 8mm wide, this collar boasts a delicate yet strong design that perfectly balances elegance and durability. The locking eternity style adds a touch of sophistication and mystique, making it the perfect accessory to elevate any outfit. The locking mechanism adds a touch of playfulness and adventure to this already enchanting piece. With the simple twist of a key, you can secure the collar around your neck, ensuring a perfect fit and a secure hold. Made from high-quality materials, this collar is designed to stand the test of time and maintain its luxurious appearance for years to come Item Specifications and details Suitable for 24/7 wear Available In Multiple Sizes Allen Key Closure This collar is 361L stainless and has no metal alloy. 8mm Thickness Measure the thinnest part of your neck and add 1-2" for best fit. In Stock in the US and Ready to Ship Discreet Domestic Shipping