Fits: Contour 500 XT, Contour 600 HD, Power Trim 500 XT, Power Trim 600 HD, Contour Power Plus Cordless, Contour 500/700, Power Trim 500/700 (newer models only - does NOT fit models with p/n 9539003/4), Sabre Trim, Mini Trim Auto Plus / Auto Plus XT / Auto / Auto ST / Auto XT