Engineered specifically to renew the foundation of your pet stairs, this replacement insert is American-made and handcrafted in the USA to fit Majestic Pet's 3-step and 4-step pet stair models. Constructed with a robust corrugated core, it is carefully wrapped in nonwoven 100% polypropylene fabric to deliver lasting strength and maintain the internal structure of your existing pet stair covers. Whether your current insert has suffered wear and tear or just needs a rejuvenation, this insert provides a practical, eco-friendly alternative to buying an entirely new stair unit. Please note this product includes the replacement insert only; the stair cover is not included. Dimensions: 3-Step Insert fits 18″L x 16″W x 15″H; 4-Step Insert fits 24″L x 16″W x 20″H pet stairs Materials: Durable corrugated material for internal support; nonwoven 100% polypropylene fabric wrapping for durability and breathability Compatibility: Designed exclusively for Majestic Pet 3-step and 4-step pet stairs Functionality: Restores internal structure, preventing sagging or collapse within pre-existing stair covers Usage: Ideal for pet owners seeking to prolong the life of their pet stairs without replacing the entire unit Origin: Carefully crafted in the USA with attention to quality and longevity This replacement insert addresses common issues like weakened or misshapen stair steps caused by frequent pet use, ensuring a safe and sturdy climb for your furry companion. Its lightweight yet resilient design fits snugly inside your existing stair covers, making installation quick and hassle-free. By choosing to replace just the insert, you contribute to sustainability while maintaining the comfort and accessibility your pet relies on daily. Whether upgrading worn stairs or preparing for new pet steps in your home, this insert represents a smart, American-made solution that supports your pet’s mobility and well-being.