Bando Brand Premium CVT Drive Belt size 669-18-30 commonly found on 50cc 4-stroke QMB139 Street Scooters with 10 inch rear wheel.
Also fits Twist N' Go Venice 49cc, Twist N' Go LS 49cc and Twist N' Go Milano 50 (49cc) '04-'07.

Baja SC50, Panterra Freedom 50cc, Panterra Fusion 50cc, Panterra Retro 50cc, QMB139 50cc/49cc , Roketa, Schwinn Hope 50, Schwinn Laguna 50, Twist N' Go LS 49cc, Twist N' Go Milano 50 (49cc) '04-'07, Twist N' Go Venice 49cc, Various unlisted makes/models