SKLZ Pro Baseball Tee With 8-Pound Locking Base | Heavy-Duty Batting Tee For Baseball or Softball STABLE BASEBALL TEE: We built a heavy-duty pro level tee to withstand the power and repetition of travel ball, college, and professional players. 8 POUND BASE: Stop slipping weights over those "classic tees" for stability. We specifically engineered an 8-pound polymer base to keep your baseball tee planted firmly on the ground. PORTABLE: Do you want to bring your SKLZ Pro Baseball Tee with you? Easy. Unsnap the base, slide it off the batting tee, drop it into your gear bag, and off you go. ROLLED RUBBER TOP: Feel more of the ball and less of the baseball tee top with our patented low friction design. ADJUSTABLE BATTING TEE: Change the batting tee height from 24 to 48 inches