Head Roller Design: Cabinet jack support pole, double jack roller head design with four rollers, length 8.4cm or 3.31inch and width 7.9cm or 3.11inch. It can also be easily adjusted up, down, left and right when supporting the cabinet. There are two jacks under the head for you to choose. Double Jack Holder: Adjustable support rod the double jack head can not only install slate basins, but also ceramic integrated basins with water retaining strips. Base Anti Slip Mat: PVC material anti slip mat, length 12.5cm or 4.92inch, width 9.6 cm or 3.78inch screw base integrated design, stable support, screw diameter 2.8cm or 1.10inch. Extension Rod: The extension rod is thickened as a whole, with a diameter of 2.88 cm at the bottom, a total length of 11 cm or 4.33inch, and a usable length of 9cm or 3.54inch. Scope of Application: Labor saving lifting bracket is for cabinet installation and support. Specification: Material: Nylon Plastic Load Bearing Capacity: 1Pair can bear 200kg(Optional). Product Size: Adjust Height 19cm-44cm or 7.48inch-17.32inch Head Size: Long 8.4cm or 3.31inch, Wide7.9cm or 3.11inch Bottom Size: Long 12.5cm or 4.92inch, Wide 9.6cm or 3.78inch Available Height of Extension Pole 9cm or 3.54inch Package Includes: 1Piece or 2PiecesCabinet Jack Support Pole(Optional) Note: Please allow slightly errors 1-2cm differences due to manual measurement. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store