Note: The color is according to the first picture,the quantity and size are according to the title,if the title is not clearly written,according to the . Our products Features: 1. Assistant arm design, thickening materials: 6-piece power arm design,uniform opening and force,enhancing load capacity 2. Hydraulics cylinder blocks,cushion core: hydraulics cylinder blocks is an important component to help Nigeria cushioning,no oil leakage and uniform force 3. Adjustable base : adopts adjustable and enlarged aircraft base design,which can be adjusted forward and backward 4.It is made of hard cold-rolled steel which is not easy to deform. It can bear more pressure 5.Aluminum width: 19-24mm.Use door thickness: 14-21mm.Easy to install Notice: Actual color may be slightly different from the image due to different monitor and light effect Please allow 1-3cm deviation due to manual measurement Material: cold rolled steel Applicable objects: Aluminum frame door,glass door Aluminum hole size: 28mm includes: 6 or 12x Hinges