[Dimensional Guide]Suitable for 3/4 inch to 1-1/4 inch thick doors; #1 and #2 rollers are both 7/8 inch outside diameter; but the offset width is different, #1 is 3/8 inch and #2 is 1/8 inch; [ Installation or Replacement]This sliding closet door roller hardware kits is for installation on doors or retrofitting old sliding doors; suitable for medium or light sliding door systems. [Smooth and Silent Operation]the design and functioning of this wardrobe door roller set a seamless, smooth, and silent operation of your sliding wardrobe doors; Say goodbye to annoying creaky sounds and uncomfortable forceful shoves; This kit makes sliding doors a breeze, enhancing your user experience on a day to day basis. [Quality Material]These closet door rollers are made using robust and hard wearing Metal ; This material promises and can withstand constant use without degrading over time; Crafted meticulously, these rollers exhibit a suit of functionality and durability, making it a choice for your closet doors. [Versatile Usage]The sliding wardrobe door kits are versatile, no matter the design of the door, these rollers can fit most doors due to their size specifications, it can be used in a variety of scenarios such as bedrooms, closets, kitchens, etc. Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:Photo Color Material:Metal Package Contents: 8 x Sliding Closet Door Wheels 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.