Soft Breathable Nylon Sport Loop Wrist Band Strap for Apple Watch Series 4 40mm - Red / Black High quality nylon material, durable and comfortable Convenient to adjust according your wrist size Breathable and lightweight, great for sports An ideal watch strap replacement for your old, broken one Compatible with: Apple Watch Series 4 40mm Package included: 1 x Nylon Sport Loop Wrist Band Strap Accessory only, device not included