This set of wall screws for gypsum board and concrete walls. It is designed for convenient installation and fixing on both gypsum board and concrete walls. The carbon steel materials used ensure durability and use. The installation and fixing process is made convenient with this set, which is designed to be used on both gypsum board and concrete walls. Features -Color:Assorted Color -Material:Carbon steel -Size(screw):3.20X0.90X0.90cm/1.26X0.35X0.35in -Size(screw bit):6.40X0.70X0.70cm/2.52X0.28X0.28in -Size(drill bit):8.00X0.30X0.30cm/3.14X0.12X0.12in -Suitable for both gypsum board and concrete walls, this combination set includes enough quantities of wall anchor screws. -The installation and fixing process is made convenient with this set, which is designed to be used on both gypsum board and concrete walls. -Along with the wall screws, this set also includes a brick drill bit for added versatility. -To ensure extra fixing power, this tool comes with drywall nail for better and convenient installation. -Each set of this combination set contains enough screw anchors, making it a comprehensive solution for various wall types. Package list: Screws 1 x drill bit 1 x screw bit