A stretch laminate having a first nonwoven material, a second nonwoven material, an elastic film. Each clamp cooperates with its respective detention device for locking the associated clamp in at least one predefined detention position and hence limiting the movement of the control lever. Through controlling the convex or concave shape of the surfaces andor the refracting power of the lens elements, the optical imaging lens shows better optical characteristics and the total length of the optical imaging lens is shortened. The output current waveform includes an absolute value amplitude in each half cycle that is generally constant during a first portion and that which increases non-linearly from the generally constant amplitude to a peak amplitude during a second portion. The systems and methods described help a surgeon prepare a patient’s bone to receive a permanent implant by providing a system that can be used to guide preparatory box cuts, and that can then be completed with a cam module \u2014without removal from the patient’s bone\u2014so that the same component can be used for the trialing process.