Relefree Backyard Golf Mat 12"x24" Residential Training Hitting Pad Practice Rubber with Tee Hole Holder Grass MaterialNylon. Mat Size: 60cm x 30cm (12" *24")Mat Thickness: 1.5cm This swing practice mat and tee combo serves as a prime companion on the driving range. This mat is excellent for the casual or beginner golfer. From The Mat elevating your golf ball for a comfortable swing.