This practice pack from Unique Sports comes with 18 pressureless tennis balls.

Speedminton, a new dimension in racquet sports, combines tennis, badminton, and racquetball and is endorsed by 2006 U.S. Open Champion Maria Sharapova. Easy to learn for beginners and fun for many advanced players, this game can be played anywhere by using the dimensions of a tennis court (although you don't need a net to play). It's fun and portable like badminton, aerobic and competitive like racquetball, and fun for the whole family. Three Types of Play: Fun Speeder can be used by beginners or for recreational volleys on the beach or in a park. Match Speeder is for fast and competitive play. Night Speeder is modified so that a Speedlight can be inserted at the base. What's in the Box? 2 Speedracquets made of high-quality, extruded aluminum for maximum durability 3 Speeders made from patented, aerodynamic materials, each for a different kind of play 4 Speedlights for up to three hours of after-dark play 1 Speedbag for carrying portability 1 Wind Ring for all-weather play 8 cones for court markers Speedminton Games: Freestyle There are no court, no rules, and no limits. From a recreational game at the beach to an exciting volley in total darkness, you can just play without keeping score. If it's windy, simply snap a wind ring onto the Speeder for added stability. Outdoor Competition Use Easy Courts to set up a game at the beach or on grassy fields. You can also use cones to turn any open space or a tennis court into two Speed Courts. Indoor Competition You can easily set up a game at any gym or indoor tennis court. No net is required--just mark your boundaries with the Easy Court or cones and you're ready to play. Night Play The Night Speeder makes it possible to play at night. Just press a Speedlight into the clear Night Speeder head to let it glow in the dark (they glow 2-3 hours). As shooting stars cross the night sky, you'll only see the Night Speeder. Rules A game is played to 16 points. Serve from the center of your playing field and players alternate service every three points. Play best-of-five to win a match.
You can crush a backhand down the line or a forehand across the court, lining up a ball in the Penn(r) Pressureless 48-Ball Bucket. The tennis balls are made of high-quality felt and are ideal for ball machines and individual practice. The balls can be easily stored in a resuable plastic bucket with a handle for easy transport.
Gamma Tennis Quick Kids Low Compression Balls 12-Pack: The Gamma Tennis Quick Kids Low Compression Balls 12-Pack are extra soft training tennis balls designed for beginners. The slower ball speed provides more time to react and set up each shot for more consistency and control when learning. The softer feel makes learning more fun for children who may fear harder regulation balls. These balls conform to the USTA Schools Program standards for beginner tennis balls (ages 8 and under).
GAMMA Quick Kids 60 Tennis Balls 12 Pack are low compression, medium bounce soft training tennis balls designed for beginners. The slower ball speed provides more time to react and set up each shot for more consistency and control when learning. The softer feel makes learning more fun for children who may fear harder regulation balls. Quick Kids 60 Balls conform to the USTA QuickStart Tennis format standard for Stage 2 balls on a 60' court.12 per pack
NEW MICRO-DRY FOR 2005Composition:Micro-Dry is a unique microfiber copolymer composite felt that provides unsurpassed moisture absorption and ultra-fast drying.Micro-Dry Comfort:Soft feel with micro-perforations.Color: Black only, 1 per package
The Wilson® Energy™ XL recreational tennis racquet features V-Matrix™ technology for a larger sweet spot. The enlarged head and Power Strings® deliver increased power to your swing.
Super thin, high stretch felt. Tapered starting end for easy application. Top choice of Wilson touring pros such as Federer, Henin and Canas.Features/Specifications:Stock Number: Z4704Colors: White, Orange, Pink, Yellow, Green, Rose Red, Silver.Dimensions: 1100mm x 25mm x 0.6mmMaterial: Microfiber felt, Polyurethane
The Wilson® US OPEN® junior recreational tennis racquet features C-Beam technology for greater power. A free starter tennis booklet is included.
Pro Overgrip has the perfect feel and preferred by top players like Roger Federer and Justine Henin. Available in pink or white.