【Wall Mounted Requirements】 Concrete wall or brick wall is suggested for mounting this pull up bar and dip station.DON'T install on drywall,plaster walls and cavity.STABLE:The 6-hole design of the OneTwoFit Wall Mounted Pull Up Bar is more stable and safer than the 4-hole design of the regular product.The maximum weight is 440 LbsDURABLE:Solid steel bar with black powder coating to prevent rust and corrosion and prolong service lifeEXERCISE AREA:The Wall Mounted Pull Up Bar is suitable for exercising the back,shoulders,chest,arms,triceps,biceps,strain and abdomen front,both indoors and outdoorsEXERCISE:Soft cushions make your hands comfortable and increase your workout timeAfter-sales service:OneTwoFit_Official is an emerging professional fitness equipment brand. We pay close attention to product quality and customer satisfaction. If you have any questions, please contact our customer service, we will be happy to solve the problem for you