Monitor Mounts, Keyboard and Laptop Trays and Shelves for Pole Carts and Poles. These parts mount to our CUZZI Pole Computer Carts so you can customize your rolling workstation or create a workstation on a 1 - 3" diameter pole. Just contact us with any questions at Ph: (321) 303-9598. There are 2 types of clamps: 1) Clamps for 35 mm. pole diameters (must be an exactly 35 mm = 1 3/8") 2) Clamps for 1 to 3" diameter ("Universal"). All fit our DVC Pole carts but only the "Universal" clamps fit on our VC01 Pole cart. Please contact us with all your questions. All the items below can be attached to our Pole Carts and stands: Here are all the products in this category:  D-LCD35 Pole Mount LCD Bracket for 35 mm. poles  DVC03-SH Pole Shelf for CUZZI Pole Computer Desks  DVC03-KB Keyboard Tray or 35 mm. poles and CUZZI DVC Pole Carts  D55-45L LCD Pole Mount Bracket for up to 45" TVs  DP125W (ex-D1270W) Monitor Pole Arm & Bracket  DP170W (ex-D1280W) 17.5" Monitor Pole Arm, Mount & Bracket  DF17-CL Monitor Desk Arm - Clamp-on desk or attach to a wall  DDL26CLB - Dual Monitor Desk Stand - Side by Side - Clamp-on  DP-855BS Height Adjustable Monitor Pole, Wall or Desk Arm  D-IP iPad Bracket & Holder Adapter  D-WPW240 24" Pole or Wall Keyboard Arm  D-LPTA Laptop Arm & Tray for 35 mm poles