The new Crush It is designed to allow players to perform many repetitions without having to stop and shag balls. Players can improve spiking technique, approach, arm swing, vertical jump and endurance. Excellent motivator for conditioning using contiguous spike approaches or block jumps. A very effective aid for teaching full arm extension and correct body position in relation to ball at contact. Can be easily set up in the corner of any gym, garage or basement. No heavy, bulky equipment to store. Ball attachments on side of ball allow player to hit on top of the ball. Easily adjustable to different height of players. Please allow 7-10 business days for delivery.