Features: The football coaching board boasts a double sided erasable surfaces for rapid tactically marking and adjustments, combined with a portable wristband design that ensures secure attachment for movement, significantly boosting coaching efficiency during intense games. Featuring good quality cotton yarn and PVC construction for impacts resistance and durability, included multiple 0.3mm thick digital cards for versatile and wear resistant tactically demonstrations, this tactically board offer reliability performances in any sports environment. Designed specifically for football coaches and team trainers with wrist sizes of 15 20cm, this coaching wristboard provides a practical solution for educators and sports professional seeking efficient on fields instruction tool. Ideal for use in diverse settings such as school trainings, club practices, and live competitions, this tactically board enables seamless strategy communication and play adjustments without interruptions. With its easy to clean surfaces that wipes clean with a damp cloth and flexible digital cards for endless tactically combinations, this football coaching board enhances coaching precisions and longevity for all team sports. Specifications: Dimension:10×10cm/3.94×3.94in Component:cotton yarn + PVC Package Includes: 1pc Youth Football Wristbands note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.