Double Color Silicone Watchband Strap Belt Replacement for Garmin Forerunner 310XT Smart Watch - Grey / Yellow Made of premium silicone, durable for use Moderate softness, comfortable to wear Holes on the strap makes it easy to adjust according to your size An ideal watch strap replacement for your old, broken one Easy to install and remove Specification: Material: Silicone Size: 115mm+85mm Wrist circumference: 155-210mm Compatible with: for Garmin Forerunner 310XT Package included: 1 x Watchband 1 x Watchband Remove Needle 1 Pair x Spring Ear Needles Other items not included Size: 90-175mm (Without watch)