A set of assembled V-groove gantry plates. Value-for-money 3D printing accessory set. Plastic 3D printer wheels with precision steel bearings for 3D printing. The pulley adopts design and test production to work stably; Silent design, low friction and durable bearing. It is assembled with wheels and is very easy to install. Name:V-groove gantry plate kit Adapted profile:2020V groove/European standard. Tension adjustment:clockwise:tighten; Anti-clockwise:release Note:this product is only suitable for 2020 V groove. Not suitable for aluminum extrusion of 2020 groove. Colour:Black & White Material:Metal+Plastic Package Contents: 1 * V-groove gantry plate kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.