Please measure your posts before ordering. OUR GATE MOUNT FIR POSTS UP TO 3 5/8 INCHES. Watch our installation video to learn more. SOLID CLAMPS WITH METAL BOLTS - No Inexpensive Plastic Straps Here - USED BY PROFESSIONAL CHILDPROOFERS EVERYWHERE WHAT SIZE POST Will IT FIT? - The Kit Fits Posts That Are At Least 2 3/4" Wide And No More Than 3 5/8" Inches Wide. Please Measure Your Post Before Ordering! - HOW MANY KITS WILL I NEED? - One Kit Is Required For Each Post You Are Attaching Your Gate To WHAT IS INCLUDED? - The Kit Includes 1- 36" Wood Strip, 2 Square Clams, 2 Wood Inserts For Clamps, 1 Set Round Adapters, 4 Bolts, 1 Set Of Interlocking Shims, 2 Finish Washers, 2 - 1 1/2" Screws, 2 - 1 3/4" Screws And Instructions. The Screws Listed Are For Attaching The Wood Rail To The Clamps. No Screws Go Into Your Post! HOW CAN I LEARN MORE ABOUT INSTALLATION? - Full Instructions Are Included In Our Images Our No Hole Stairway Baby Gate Mounting Kit was designed by a professional childproofer and lets you mount safety gates without having to drill into your posts. Whether your posts have square or round tops, you'll never have to drill into them, use screws or messy adhesives, giving you the best solution to preserve your beautiful woodwork. Made of super-strong, professional quality materials our Gate Mount Kit features heavy-duty metal clamps and bolts, with no cheap plastic straps, glues or adhesives. In fact, our superior quality Gate Mount Kit is used by professional childproofers everywhere. Fits posts from 2 3/4" to 3 1/2" wide with square or round tops. One Kit is needed for each post. Kit includes 1- 36" Wood Strip, 2 Square Clamps, 2 Wood Inserts for Clamps, 1 Set Round Adapters, 4 Bolts, 1 Set of Interlocking Shims, 2 Finish Washers, 2 - 1 1/2" Screws, 2 - 1 3/4" Screws and Instructions. (Screws are for attaching the Wood Rail to the Clamps. No screws go into your post.)