Rubber, these leg bands are gentle on your pigeons' legs and feature a 9mm inner diameter to fit most pigeons comfortably Improve your Pigeons training efficiency with our 100 piece Mixed Color Pigeons Training Leg Bands, designed for easy identification and management of pigeons for Pigeons training, identification, and daily management tasks, ensuring your birds are easily distinguishable Ideal for Pigeons enthusiasts, pigeons lovers, and professional breeders seeking marking With fade colors, these Pigeons leg bands offer a practical for your avian needs