Solid Wood Frame & Strong Legs The frame of the sofa used solid wood frame and high-MDF,with stable structure and long service life.It is also equipped with sturdy sofa legs, which are supportive and do not produce loud noises. High -Sponge Elasticity The sofa uses high -quality sponge filling, which has high elasticity and provides a more comfortable cushion. It is also equipped with a snake -shaped spring pad to better support your body. Linen material your pet climbs on it, and it is not easy damage. Comfortable Spring Seat The highly resilient foam seat has built-in springs that won't feel uncomfortable steel tube hardness, providing better support and a comfortable experience! The sofa base is also supported by "S" type spring cushion, which is more resilient and comfortable.