This is a set of fixing holders for the Caraz baby playpen. These optional parts are designed to prevent the playpen panels from moving or bending, significantly enhancing safety. You can rest assured even if your child leans on the playpen. The set includes 2 straight-type holders and 2 corner-type holders, for a total of 4. Installation is tool-free; simply insert them into the bottom of the panels. One of the straight-type holders is slightly cream-colored due to sun exposure (please see photo 2), but there were no issues with its use. Recommended for those who want to further stabilize their Caraz baby playpen at home or are considering purchasing additional panels. Please feel free to ask any questions in the comments. Thank you.