Each frameless shower door roller includes an adjustable bracket with diagonal installation slots to accommodate 1 / 4 inch thick glass panels, along with three mounting screws and a 3 / 4 inch ball bearing roller for precise installation Perfect for upgrading existing shower enclosures or new installations, these top bracket rollers ensures your glass doors maintain levels alignment and smooth operations during daily use This complete set of 4 M 6053 frameless shower door rollers features premium chromes aluminum construction for durability and resistance, ensuring enduring for your shower enclosure Ideal for homeowners and enthusiasts seeking reliability shower hardware, these rollers a practical solution for installing or replacing components in frameless shower door Engineered with a robust ball bearing mechanism and elegant chromes finish, these shower door rollers combine functionality with aesthetic appeal for modern bathroom upgrades, Manufacturer: ZBIianxer