Package: This combination to meet your daily repair and replacement. Premium Material: Our closet door hardware are mainly made of alloy steel. The high hardness of steel alloy and the good toughness and wear resistance of nylon. They 't become brittle and crack over time, so they're durable. Easy to Use: Our bi fold door hardware kits contain detailed installation instructions, easy to operate and replace parts. The bi-fold barn door hardware set will money and give you a sense of accomplishment when repairing your door or furniture. Easy to Install: When replacing a bi-fold closet door hardware kit, you will hardly need to make any additional drilling, measuring and other adjustments when changing fittings. The pivots and guide wheels have their own springs, when they are fixed on the door hole, by pressing the inner spring, the distance between the door and the track is adjusted, so that it can quickly enter the bracket and the track, and the folding door can slide easily. Wide Application: These heavy duty bi fold door hardware kits are suitable for repairing bi-fold doors, sliding doors, bi-fold wardrobe doors, bedroom wardrobe doors, garage doors, laundry room doors, storage room doors and more. Door hardware can quickly give your door a . Specification: Material: Nylon + alloy steel + metal colour: silver Package Contents: 2 x 3/8inch metal tops 2 x bottom pivots 2 x 7/8inch top guide wheels 2 x steel tops 2 x bottom brackets 12 x screws 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.