Cotton Please note: ①This product is a 1-piece fence. If you want to surround your bed with it, please purchase accurately according to the size of your bed and the specifications of our product. ②The railings of our bed guardrail are short at the top and long at the bottom. The middle tube of the top rod is shorter, and the middle tube of the bottom rod is longer. Please place the long intermediate tube in the bottom tube section during installation Safety is our top priority, which is why our bed guard rail is made from 100% safe materials and has passed the rigorous Children's Product Certificate. The strong steel frame is wrapped in foam to prevent the baby from getting hurt, while the high-quality linen and breathable mesh padding offer maximum comfort and durability The toddler bed rail is equipped with a double-sided child safety lock, ensuring that babies cannot accidentally operate it. With the ability to independently lift each side and a single-hand lock button, parents can effortlessly and smoothly get in and out of bed without any inconveniences or sticking To ensure a seamless and stable experience, our safe bed rail features a bottom bar that securely presses the mattress, leaving no gap between the guardrail and the bed. If you have any questions or encounter any issues regarding our bed rail for toddlers, feel free to reach out to us at any time. We are committed to providing free replacements based on your specific case details, ensuring your peace of mind The upper part of the pipe is equipped with a thick version of EPE pearl cotton tube, you do not need to remove the installation, the soft anti-collision cotton design effectively reduces the risk of baby bumps, providing a safer environment for your baby