HIGH APPLICABILITY - This squeaky floor repair kit is suitable for both types of floor brackets, they are standard wood and new I-brackets. Additionally, it can be used on any floor 1.22 inches or thickness. The process is simple - only two steps are required. First, determine of the squeaking floorboards, then use squeaky floorboards to secure the floorboards. Completing these two steps will eliminate the squeaking. EASY TO INSTALL - This floor squeak repair kit requires no drilling and expertise required. Simply use the high-strength screws and nails provided in the floor squeak repair kit to hold the blocks in place, then use a drill to screw them into the blocks. Dramatic results - This squeaky floor patching kit helps relieve Spaces in your floors. This squeaky floor repair kit adds support when the floor is pulled back into its brackets. Additionally, our squeaky floor repair kit is a two-hole design, allowing two nails to be placed in the fixed aluminum block for greater strength. Multiple brackets on both sides eliminate squeaks from sagging or bowing joists. Number of pieces:12PCS Colour:silver Material:Metal Package Contents: 1 set x squeaky floor repair kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.