Buckle closure ?【Compatibility】The GDMEET Crystal Clear iWatch Band with Case fits Apple Watch 40/38mm. Compatible models includes:Series 6 / 5 / 4 / 3 / 2 .Adjustable band suitable for most people's wrist size from 6.3” to 8.3” (160mm-210mm). It will not compatible with Apple Watch size 42mm/44mm.Kindly please check your watch model and size carefully before ordering. ?【Full Protection】360-degree uni-body protection and Made from durable TPU with bumper case built together, providing daily protection against bumps and scratches.Please kindly note there is no screen protector included. ?【Premium Material】The Crystal Clear Apple Watch band 40/38mm is made of no poison and Transparent resin material.This material has oxidation resistance and can prevent the color of the strap from turning yellow.Double holes design keep the wrist breathable and dry, resistant to sweat and friendly to the skin. ?【Precise Cutouts】Precise cutouts enables easy access to all ports and buttons, all features work seamlessly and snugly fit stays on under impact.It is easy to install with one-click disassembly, without tool. ?【Sport Style】This Soft, breathable, and lightweight, the new sport style iWatch band for men, women sport and daily exercise gym or other outdoor activity. It’s lightweight and fashion which fits for many occasion in your life.