These new axis adjustable Fixed PD Trial Frames are quite comfortable since they are very lightweight and sized to the patient’s needs and adjustable for temple length. They are available in sets or individually. The set includes a PD rule to make accurate frame selection quick and easy. Each frame holds three trial lenses in front and a fourth lens behind on each side. All have a knob to rotate the axis of the front lenses. Each frame holds 4 trial lenses (3 in front and 1 in back). 531700 is a pediatric trial frame set that comes with the following: Toucan Fixation & PD Ruler 52 PD Trial Frame 54 PD Trial Frame 56 PD Trial Frame 58 PD Trial Frame 60 PD Trial Frame 532200 is an adult trial frame set that comes with the following: Toucan Fixation & PD Ruler 62 PD Trial Frame 64 PD Trial Frame 66 PD Trial Frame 68 PD Trial Frame 70 PD Trial Frame