Top Grade . Brand : IFOLAINA The United States trustworthy brand. We have NOT AUTHORIZED any other sellers to sell our products Shiny Polished Chrome base finish, the natural bubbles exist in the balls when the balls are in the furnace .With Bubbles inside the crystal ball, very nice, fashionable. Modern drawer pull with excellent transparency and first-rate brightness crystal Crystal is hand polished to a brilliant shine, extremely durable and resistant to discoloration from exposure to sunlight High quality gorgeous clear crystal glass ball used for cabinet, drawer, cupboard dresser knobs A simple and most economical way to make your room look more elegant Specification: - Material: Crystal Glass + Zinc Alloy - Color: white - Weight: 0.0443kg - Package Content : 10 x Knob; 12x Screw - Knob Size: 1.18*1.18*1.57"inch - Screw Size: long:1.06inch(threaded portion: 1inch) ,diameter of the bolt: 0.14 inch (about 3.5mm) Note: The length of the standard screws we provide are about 1.06inch , if they don't meet your requirements, you should buy screws by yourself.