Fangrui Product Details 1.the Knobs Has A Texture To The Touch ,made Of Zinc Alloy,the Knobs Touches Comfortable And Has A Texture 2.only One Hole In The Middle, Just Drill A Hole(about 4mm) On Cabinet And Pass Through The Screw From The Back Of Board And Thread Tight To The Knob. 3.the Decorative Backplates Can Seperate From The Rose Ceramic Knobs, So You Can Use The Rose Drawer Pulls Alone Or Use The Backplate With Other Knobs. 4. 0.98inch To Meet The Thickness Of Most Furniture.easy To Install: Cabinet Knobs Have Three Kinds Of Length Of Screws, Suitable For A Thickness Of From 0.71 To 0.98 Inches Wooden Boards. 5.whether Used To Old Handles Or To Fit On A New Cabinet, It Makes The Furniture Cabinet Sparkle, For Doors For Any Purpose Such As Drawer Door, Wardrobe Door, Cabinet Door, Cupboard Door, Also For Cabinet Dresser Drawers Cupboard Wardrobe Bookcase.great Helper To Pull Out Drawer,cabinets And Other Furniture. Colour: White Material:ceramics Package Contents: 4 X Rose Knob With Plate 4 X Screw