Material & Quality: The installation base is made of metal to make anti-rust, firm hand feel, sturdy and durable, pretty artistic and easy to install Check Size: Knob Diameter: 40mm/1.57"; Knob Height: 40mm/ 1.57"; Ceramic Knob Height: 28mm/1.1"; Base Diameter: 30mm/1.18"; Screw Thread Length : 61mm/2.4"; Screw Rod Length: 65mm/2.56"; Screw Thread Dia: 4mm/0.16"; Fit for Board Thickness: within 23mm/0.9" Package Content: 6 x Ceramic Knobs, 6 x Screws. We provide mounting screws, which can be fit the thickness of the different boards for easy installation. If the screws are not suitable, please prepare your own screws. Good Replacement: the elegant design is good match your home decoration. Good replace your old knobs, decorate your furniture Applicable Objects: Suitable for wardrobes, shoe cabinets, cabinets, TV cabinets, drawers, computer desks, office, jewelry storage boxes and other furniture. Great gift for new home decoration, furniture renovation and so on 1. The knob's surface adopts solid die casting, long-lasting new, smooth surface, no fading, excellent workmanship. 2.The installation base made of quality metal and Ceramic. The base adopt the widen design which is more stable. The mounting hole thread is deeper to install and fasten. 3. We provide mounting screws, which can be fit the thickness of the different boards for easy installation. If the screws are not suitable, please prepare your own screws. 4. Our knobs can be used on dresser drawers, kitchen cabinets, and bathroom cabinets. Our decorative knobs will make any furniture look more elegant. 5. These knobs are easy to install. It is chic, practical, and economical, the small drawer knobs have recently been popular for decoration. 6. The beautiful door knobs are suitable for the door of the drawer, chest of draws, dresser, cabinet, cupboard, wardrobe, etc. Great gift for new home decoration, furniture renovation and so on. Installation Steps: 1. Determine the installation location 2. Drilling a 0.16"(M4) diameter hole for screws 3. Fasten the knob handle with the screws 4. Install finished Specification: Product Name: Ceramic Knob Material: Ceramic Knob Diameter: 40mm/1.57" Knob Height: 40mm/ 1.57" Ceramic Knob Height: 28mm/1.1" Base Diameter: 30mm/1.18" Screw Thread Length : 61mm/2.4" Screw Rod Length: 65mm/2.56" Screw Thread Dia: 4mm/0.16" Fit for Board Thickness: within 23mm/0.9" Package Content: 1/2/4/6 x Ceramic Knobs, 1/2/4/6/ x Screws Available Color: Green#3, Yellow#3, Blue, Red#1 Notes: 1. Variability of 1-2mm is possible due to the measurement process. 2. Due to the screen setting difference, the color of the item may be slightly different from the pictures.