ABS plastic 40+ cell-free-dual table tennis ball D40+ cell-free-dual are made from a new material formula that has a more accurate sphericity and better elasticity The new material also provides a good bounce trajectory coupled with enhanced durability The DHS balls have kept more continunity with the celluloid ball charateristics in hitting sense, drop point, sound, rotation and trajectory ITTF APPROVED balls Ball of the 2014-2020 ITTF World Championships and most international competitions Box of 10 - 3* Balls Colour: White