?SIZE DETAILS?It is (inner L x inner W x outer L x outer W x H)about 102 x 102 x 147 x 147 x 36.4mm/4.02 x 4.02 x 5.79 x 5.79 x 1.43inch, SUITABLE FOR 4 X 4 INCH POSTS . PLEASE CONFIRM THE SIZE BEFORE PURCHASE. ?WHAT YOU WILL GET?You will receive 4pcs 4 *4 Inch post base, sufficient quantity will meet your using needs, and you can share them with your friends. 4pcs post bas adopt split design, which is convenient for installation. ?STURDY MATERIAL?Post base is made of vinyl plastic, featuring high toughness, strong and durable, not easy to break. It is weatherproof, not easy to fade. Smooth surface and fine workmanship. ?EASY TO INSTALL?Easy and convenient to use, no need to remove the railing. The two ends of the Split can be easily clamped together to fit the post tightly, not easy to separate. The surface is smooth, no burrs, and will not scratch your hands. ?WIDE APPLCIATION?4 *4 Inch Vinyl post base is widely used, very suitable for stair handrails, corridor posts, fences and many other posts. Ideal for trim, match well with the surrounding, look more elegant and simple. Specifications: Color: White Material: Plastic Size: (inner L x inner W x outer L x outer W x H)about 102 x 102 x 147 x 147 x 36.4mm /4.02 x 4.02 x 5.79 x 5.79 x 1.43inch Package Includes: 4 Pcs x 4 * 4 Inch Post base Note: 1. The post base is suitable for 4 X 4 Inch post. Please Confirm The Size Before Purchase. 2. Due to the light and screen difference, the item's color may be slightly different from the pictures. 3. Please allow 0.5-2 cm differences due to manual measurement.