The Original Dyna-Flex Pro Plus is designed with a high performance rotor, which can reach speeds of up to 10,000, rpm and puts out 38lbs. of torque. It also features a new "thermo band", which aids the user in controlling this powerhouse. The Dyna-Flex Pro Plus was designed not only to be user friendly but to aid in sports rehabilitation and conditioning of the lower arm. It is being used for carpal tunnel syndrome, by musicians, for improving performance in sports, as well as, helping in repetitive stress for computer terminal operators. The new Dyna-Flex Pro Plus comes with a removable top cap, which allows the insertion of the optional speed meter. The speed meter, when attached to the Dyna-Flex Pro Plus, gives the user the option of 3 separate work our programs, through the digital functions.