Referee Substitution Sign Football, basketball, football etc. Indicates player substitution in sports. 35x55 case size It is controlled by button. It has 6 hours of charging time. 2 Its battery does not run out during the competition. Assistance is provided for special designs. 

All products can be personalized in the language of your choice. Just send us a message with the details. Manufacturing is made to order. Manufacturing process takes 5-7 working days. Returns are not accepted for personalized products.