A lever type connector comprises two connector housings, a front holder, a movable guide member fixed within one of the connector housings, and a movable guide member slidably attached to another of the connector housings. A method for controlling flow in a wellbore. Applications using these polymers include but are not limited to, electrophotography toners, melt facture reduction agents, and compatibilizers. Each bar is provided with a clamp by which it may be attached to the stroller.