Locking height: 330mm, unlocking height: 100mm; Dimension：700*200*100mm(biggest type) N.W.: 14.5 Kg; yellow carton Packing Size (2 pics): 750×250×240mm G.W.: 30 Kg This is our special model, as the elliptical cover's mould's much more expensive, thus few factories copy this model. But it’s very heavy load for motor, so the motor’s very strong and make a little louder noise, only available from our factory