1. Material: PU 2. One ball each for red and black 3. Color: Basic: Black, Advanced: Red 4. Size: Basic version: ball is about 6cm, rope is 80cm, ball weighs about 23 grams.Advanced version: ball is about 6cm, rope is 80cm long, ball weighs about 85cm 5. Accessories: reaction ball, silicone sweat ball
