【Aerospace-grade Titanium】Crafted from the same aerospace-grade titanium as the apple watch ultra 49mm case. This Apple Watch Ultra/Ultra 2/Ultra 3 49mm band is inspired by the sleek design of Iron Man. 【Titanium Link】Weighing only 0.13 pounds, it is lightweight yet durable. With similar characteristics as stainless but weighs 50% less, is more corrosion-resistant. Titanium strikes the perfect balance between weight, ruggedness, and corrosion resistance. 【DLC Layer】Used an additional diamond-like carbon (DLC) layer same with Apple's $449.00 Link Bracelet. Due to DLC technology requires the use of advanced manufacturing equipment and materials, as well as complex production processes, the machining cost is higher than traditional electroplating coatings. It's more wear-resistant and corrosion-resistant than traditional electroplating coatings, and also has higher hardness and better surface texture. 【Folding Clasps】The custom butterfly closure made of corrosion-resistant titanium folds neatly within the link bracelet, provides a secure and comfortable fit. The hidden deployment buckle opens with a click of the two side buttons, making it easy to put on and take off. 【Our Quest for Excellence】Fits wrists from 5.5” to 8.3” (140-210mm). If you need additional links, please contact our customer service team to get a titanium link bracelet kit. Enjoy 18 months of complimentary exchange or refund without returning the product. Compatible for Apple Watch Ultra 2 49mm, for Apple Watch Ultra 49mm, for Apple Watch Series 8 45mm, for Apple Watch Series 7 45mm, for Apple Watch SE 44mm, for Apple Watch Series 6 44mm, for Apple Watch Series 5 44mm, for Apple Watch Series 4 44mm, for Apple Watch Series 3 42mm, for Apple Watch Series 2 42mm, for Apple Watch Series 1 42mm.