DIMENSION & INSTALLATION: 8 inch Polished brass lampshade harp is easy to install and will fit perfectly. LAMP HARP KIT: Flexible bulb shaped lamp harp kit that connect the lamp base to the lamp shade. Small metal brass cap on each end to prevent the harp from slipping off the socket. REPLACEABLE LAMP SHADE HOLDER: Easily replaceable lamp shade holder with the old one and perfect for modern lamp parts and accessories, lighting fixtures and contemporary home decor styling. FINIAL REQUIREMENT: Standard 1/4-27m threads finials can use at top of lampshade WIDE APPLICATION: Perfect for lamp accessories, can be used for table lamp, floor lamp, standing lamp, desk lamp etc.