The 4 styles of Eva Support walkers are the EVA Elite Support walker manual or with hand brakes, EVA 2 Youth walker manual or with hand brakes, EVA Pneumatic Support walker manual or with hand brakes, and EVA Electric walker w/110v charger with or without handbrakes. All of the Eva support walkers are designed with the single point-of-height adjustment at the vertical post and easy to release lever mechanism is conveniently located under the front armrest support frame. The specifications on the Eva Support walkers the height adjustment range from 23” – 50”, the outside base ranges are 25” and 26”, the inside width at opening are 22.5” and 23 1/4”, the base length is 27”, the inside arm width 11”- 20”, and the padded arm measurements are 17.5” x 6.5”. On the Eva Support electric walker the battery powdered will assist you into a standing position the lifting capacity is 220 lbs. The accessories for the Eva Support walker are a basket w/hanger bracket, IV pole w/mounting bracket, portable E&D oxygen tank holder, extra arm panels and height adapter kit.