Fischer M-Pro 1 Racket Magnetic Speed Frame Tennis Racquet Good condition with still more life left in it. Grip is just under 1 3/8" diameter and would probably need to be re taped. Not serious yet. Features the Magnetic Speed frame with equally polarized magnets at the 3 and 9 o'clock positions designed to return the racquet to its original position faster than conventional racquets. Fischer claims the result is greater power and ball speed off the stringbed. 1.45 Body Height (m) M Pro No. 1 - 1.45 0:4" Weight: 240 +- 8g 8,5 +- 0,3oz unstrung Recommended string tension: 40-55lb / 18 - 25 kg Racket size: 26" x 10.25"