Specification: Product Name: Putting Exerciser;  Turf material: Environmentally friendly artificial grass;  Bottom pad material: Non-slip rubber;  Base material: EVA;  Turf size: Width 30CM ,length 250CM/300CM(Optional);  Hole diameter: Big hole 8CM / small hole 6CM;  Baffle size: 36.5*14*8CM;  Track size: Length about 128.4CM / width about 5.4CM;     Features: 1. This exerciser uses environmentally friendly high-hardness plastic, which is thick and durable. At the same time, the weight is controlled below 4KG. It is easy to carry and play wherever you take it   2. The upgraded version has a new insertion hole, the putter can be inserted on it when not playing, and a few more grooves are added to place the golf ball and save space.  3. A new ball return track is added. After the ball hits the hole, it will roll back along the track itself, saving the trouble of picking up the ball, which is very user-friendly   4. Using high-quality turf to simulate and fit the real golf course speed, two-color fairways, very realistic   5, Double hole design, there are two holes of size, which can increase the difficulty and fun of practice, professional and real      Package included: (Four types for you to choose） A:1x 3 Meters Golf Putting Trainer With Putter &Three Balls.  or B:1x 2.5 meters Golf Putting Trainer With Putter &Three Balls.  or C:1x 3 Meters Golf Putting Trainer.  or D:1x 2.5 meters Golf Putting Trainer