Safety Barbell Lifting Frame:To Increase Safety And Stability,Please Use The Corresponding Wrench To Tighten The Nut.you Cannot Tighten The Nut By Hand only.100% Satisfied Solution If Any issue! Anti-slip Barbell Free Bench Press Stands:The Barbell Bench Press Is Equipped With Anti-skid Feet To Prevent Damage To The Floor,Which Also Increases safety. Adjustable Dumbbell Squat Racks:The Barbell Rack Has Adjustable Safety Pins To Help You Adjust It To The Height You Need.adjustable Height 32-52 Inches 10 Height Gear Adjustments And 9 Width Gear Adjustments:With 2"hole Spacing On The Barbell Rack Uprights Allows You To Get The Spotter Arms Customized At The Exact Height For Doing Squat,Flat,Incline And Decline Bench Presses,Curls,Shrugs And Much more. 550lbs Max Load:All-steel Construction Comes In Effective And Compact Size,Standing 5.6 Ft,Adjustable F 43.5"to 67.5".barbell Rack Impressively Hold A Max Load Of 550 Lbs Safe And secure. Home Gym Weight Lifting Free Bench Press Rack for Strength Training,Multi-Function Barbell Rack Portable Squat Rack Max Load 550lb,Adjustable Squat Stand - NWCTI1U8