Powerline Club K Fastpitch Mat. Rubber mat with permanent embedded white lines and pitcher's plate is the ultimate training tool for fastpitch softball. Centerline is the actual power line which indicates proper foot placement and balance. Weight 45 lbs. Size 3' x 9' x 1/8" thick. Skid Resistant. Portable Indoor / Outdoor. Ideal for Indoor use on gym floor Size 3' x 9' x 1/8" thick.