RTM LPR35 - 1/4", 1100 m, 10,5", Trident Plastic ReelProfessional and Long Play Analog Audio Tapes With Superior Recording and Sound Playback Qualities! Product code: R34512 LONG PLAY VERSION OF SM 911 Width: 1 4 Backcoated Same formulation as SM 911 Excellent winding properties Low speed recording compatible Professional and Long Play Analog Audio Tapes With Superior Recording and Sound Playback Qualities! PURE ANALOG SOUND. RTM is the leading manufacturer of professional and long play analog audio