This listing is for Genuine mint condition Sony Pinch Roller, this pinch roller is for many sony VCR like sony :-

EV-C3, EV-C40, EV-C100, EV-A50, EV-A60, EV-S2000, EV-S3000, EV-S5000 & EV-S7000.

Also this pinch roller is for Sony GV-D200 & GV-D800 digital8 video Walkman.

This pinch roller also for sony CCD-F series, sony CCD-TR series, CCD-TRV , sony DCR-TRV digital8 series with one exception, this pinch roller does not fit those camcorders that have the label "B" on the arm assembly of the pinch roller. 

Why do you need this item, well time, humidity and other factors make this pinch roller cracks and sometimes becomes solid and cause the tape get chewed.

Good luck.