FINE DESIGN: it can provide a stable support for training because the base has a valve to introduce sand or water to add weight, and the small ring on the side to hang the ribbon, the part concave for placing the tennis ball, convenient and practical to use. EASY TO USE: Easy to use and convenient to train without picking the ball. Its light and portable, and useful for a practicing person. It could also improve your concentration, sports skills, eye and hand coordination and develop sports interests. PERFECT GIFT: A great gift for your friends, family members and children who love to play tennis. It can help improve your running action, footwork and punching powerPrecision control, tennis skills, suitable for many places like garden, park, etc. Package includes: 1 x training base, 2 x training balls. Precision control, tennis skills, suitable for many places like garden, park, etc. Product Descriptions The tennis ball back base trainer is made of high quality plastic, sturdy and durable. The bonus rubber rope is highly elastic and wearable with exquisite design and fine workmanship. Adding 2 large-area non-slip EVA on the bottom has excellent cushioning effect. Ergonomically shaped handle makes it more convenient and convenient to carry. Imitation tennis design, perfect fit for tennis. Great gift for your friends, family members and kids who love to play tennis. Specifications: Material: Plastic+Rubber Specifications: Item: Tennis Trainer Material: plastic and rubber Color available: blue A, blue B, orange, green Package included: 1 x Tennis Training Base 2 x balls with rope