This is the small clutch belt size 320-5M-20 Drive Belt BladeZ XTR Moby Scooter

The first number is the belt length (320mm / 12.6"), belt has 64 teeth.
The second is the pitch (5mm / 0.197"), the peak to peak tooth spacing
The third is the belt width (20mm / 0.78")
Free ship cost
If you have any questions, feel free to e-mail us  
USA Seller.
 we ship the same business day, all parts place before 4pm Pacific standard time.