Ball launcher for hard tennis practice, capable of continuous hitting. - Model Name: Tennis Partner Toss - Ball Distance: Approximately 2.0 - 2.8m - Weight: 1.0kg - Power Source: 4 x D batteries (sold separately) - Balls: Sold separately Thank you for viewing. I used it once and then stored it at home. The distance and height cannot be adjusted. A "thump" sound is made when the ball is launched. Please consider it for practice for beginners and children. There are small scratches and scuffs.