Very Easy To Install And Replace -Mount To Baseboard To Protect Walls. Just Sturdy Metal Screw Mounts Directly To Baseboard With a Drill & Screwdriver. Product Dimension- Base: 1" , Screw: 13/16” And Projection: 2-7/8” From Mounting Surface; Material: Zinc+Rubber. (Refer To Our Drawing For Details) Protect Your Interior,Exterior Doors And Walls From Damage Quality- HOMOTEK Rigid Door Stop Is Made Tough To Withstand Everyday Use. Our Wide Base And Firm Rubber Bumper Tips Design Restricts Those Heavy, Fast Swinging Doors From Slamming Into Your Walls And Creating Those Dreaded Doorknob Holes, While Also Safeguarding Your Wood, Steel, And Fiberglass Doors From Marks And Scrapes. Enough Quantity For Use - 3 Pieces In Total. Perfect For Use In All Parts Of Your Home To Beautifully Match All Of Your Other Black Home Accessories And Decorations. You Can Even Give Them To Family Or Friends For The Perfect Housewarming Gift. Reliable Quality - Your Experience With The Product Is Our Guideline. If You Shall Have Any Concerns, Send Us An e-Mail And We Will Get To You Within 24 Hours. If You Are Not Fully Satisfied, Simply Send Them Back For a New Set Or! No Questions Asked! HOMOTEK 3 Pack Heavy Duty Solid Rigid Door Stop with Soft Rubber Tip, Zinc Die Cast Door Stopper Protect Wall & Door, Gold