Specification: Material: rubber Size: approx. 3.8 x 0.4 cm / 1.5 x 0.16 " Outer diameter: approx. 3 cm / 1.18 " Fit for dog tap use, these round silencers stretch out to fit a standard military regulation dog tag Dog tag silencers surround the dog tags and prevent them from making noise when colliding with the dog tag chain or another dog tag Package included: 2 x Dog Tag Silencer (tag and other accessories are not included) Note: Please allow 1-5 mm errors due to manual measurement Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same