Material: The mount bracket is made from tough materials to promise steady clinging to the support. You can be that it 't fall off easily. Installation: Just press the brackets onto the wall and put screws into the holes and steady . Super easy ways to install. Compatible with for following LG Sound bar models: For LG sound bar SSH4 SJ4R SJ4Y SJ4 SJ2 SK4D SJ5B SH8 SJ8S SH5 HS7 SJ6 LAS455H NB5540/S54A1-D NB4540/S44A1-D NB4542DEUSLLF LAS551H S55A1-D LASC55, not for all LG Sound bar. note: Different batches may have slight color differences or differences in the actual product, which does not affect use. Material: Metal colour: Black Package Contents: 2 x bracket 1 pack mounting screws Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.