Substitution Board with DoubleSided Display User friendly design: easy to operate and does not require any additional devices or batteries. Versatile use: suitable for football matches and any sport that requires a substitution board. Durable construction: made with quality materials for a sturdy, longlasting build. Doublesided display: clear visibility from any angle for referees and players at all times. Power and setup: no power source needed; ready to use right away with simple operation. Why you need it Quickly and clearly signal player substitutions without relying on electronics or extra gear. Improve communication on the sidelines with a reliable, easytoread board that works in varied lighting and weather. What makes it stand out Manual operation eliminates the need for batteries or chargers. Dualsided display ensures readability from both sides of the field. Built from quality materials to withstand regular game use and outdoor conditions. Use scenarios Soccer/football match: signaling player changes, timeouts, or tactical adjustments during live play. Team practice or training sessions: managing substitutions and lineup changes efficiently during drills. Recreational leagues or multisport facilities: a single durable board adaptable for different sports that require substitution signaling. Specifications Function: substitution signaling board for sports Compatibility: suitable for football/soccer and other sports requiring a substitution board Material: quality materials Display: doublesided for easy visibility Power: does not require batteries or external devices