Genuine rubber two-piece watch strap with quick-release spring bars. Available in 20mm, and 22mm. Two keepers, one with notches to hold it in place.  Nine adjustment holes mean that these straps should fit well on any size wrist. The vented design is perfect for keeping your wrist cool while working out or during hot weather. Our StrapHabit Rubber straps are extremely durable, and comfortable. The deep colors look fantastic! Quick-release spring bars allow you to quickly swap straps in seconds without tools. These straps are NOT silicone, they are genuine FKM rubber. They feel nearly as soft and flexible as silicone, but are much stronger, and resistant to picking up fuzz, or cracking. In the photos, you can see how flexible they are, and that they can be completely folded without stretching or cracking. Compared to traditional vulcanized rubber, FKM adds increased durability, chemical, and heat resistance.   Specifications Length: 3in/5in - 75mm/125mm (not including buckle)Width: 20mm and 22mmBuckle Size: 18mm and 20mmBuckle Color: Brushed silverBuckle: Stainless steelThickness: 3.5mm to 5mm The built-in quick-release spring bars have 0.8mm tips and are compatible with all watches with standard or Seiko fat lug holes. If you prefer spring bars with 1.1mm tips for your Seiko, you can find them here.