[Product Type]: This set includes two heavy duty Board Dollies, great for porting door panels with ease.The dollies are equipped with 360°rotation wheel with brake for smooth and efficient movement. [Material]: Made from quality steel, these door installation dollies are designed to withstand heavy loads, ensuring durability and long lasting use. [Suitable for]: Door Installation Kits, Heavy Duty Door works with 1-3/4 inch and 2-1/4 inch Pre Hung, Slab, and Front Doors, etc.Can withstand 250kg. [Versatile Use]: Door installation tools are Ideal for both professional and personal use, these dollies can be used in construction sites, warehouses or even at home for moving heavy objects effortlessly. Product name: port tool Style: Wabi-Sabi Specifications: 2 pieces Metal finishing process: electroplating Model Number: Door Installation Kits Applicable: Sliding door, furniture, shelf Colour: Black Material: Steel Package Contents: 2 x door trucks 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.