[SIZE] - 42mmx20mmx20mm /1.65"x0.78"x0.78".[MATERIAL] - Made of good quality abs plastic, non-conductive.[EASY to INSTALL] - With 4 mounting holes, 0.18" (4.6mm) hole diameter.[APPLICATIONS] - This braces can be applied in many different places, wide used in home and factory areas[PACKAGE CONTENT] - 50 x Angle Brackets with cover cap (Mounting screws are not included).