Sponge Color: Random Thickness: 0.4mm-1.2mm Features: Strong explosiveness, great elasticity, strong bottom, fast speed, good ball control Description: -Due to different production batches, the color of the sponge is different and shipped randomly -Characteristics: Strong explosive power, great elasticity, strong bottom, fast speed, strong ability to control the ball - Japanese sponge, strong explosive, easy to control, suitable for circle ball -Made in Japan, this sponge is a product of a professional manufacturer of sponges for table tennis in Japan - The thickness of the sponge varies from 0.4mm to 1.2mm, with high elasticity, strong bottom and fast speed