Define Essentials Heavy Duty Multi Height Bed Risers and Bed Lifts - 8 Piece Set - Adjustable to 8, 5 or 3 Inch Heights Adjustable Bed Riser System Instantly Creates Additional Under Bed Storage - Modular design - 8 total pieces for up to 8" of under-the-bed clearance Customize to you own needs: Extra 8" High, Extra 5" High or Extra 3" High Heavy-duty construction; holds up to 2,000 pounds Safe, strong, stackable and easy to use - Won't scratch or dent hardwood floors - Used for virtually any furniture with 4 legs LIFETIME REPLACEMENT GUARANTEE  You are protected for life, through our lifetime replacement guarantee program. If anything at all goes wrong, we will send you a replacement absolutely free, no return required!