These Metal Adapters are to adapt your 16mm lug GShock to use most 1 piece or 2 piece straps, with option of 20mm strap width. Recommended compatible models including G100, 2310, GA800, 5600/5610, 6600/6900 among others.The adapters are machined from billet aluminum and coated with a TypeIII hard anodize black finish. Premium ballistic woven nylon makes it comfortable to wear and not scratch skin. Durable and not easy to fade, and waterproof, so it can be washed repeatedly with water and easy to dry,and can be worn in all four seasons of the year 316 solid stainless steel buckle, no need to worry about damage.If the strap is longer than necessary, the free end is neatly folded back to the fixed ring buckle. The length and thickness of the strap: suitable for wrists with a wrist circumference of 6" -10" (160mm-280mm), please measure your wrist size before ordering. Using 1.5 mm thick nylon material, the watch can be worn stably and comfortably on the wrist Kit includes: - Nylon Strap - Metal Adapters with stainless steel springbars - complimentary spare 16mm stainless steel springbars - complimentary budget springbar tool Your satisfaction and the establishment of credibility are our pursuit. If you are not satisfied with the strap you received, please feel free to contact us. We will provide you with thoughtful after-sales service until you are satisfied