Package includes: 1 set of spring ( spring x 1 piece, clip x 2pcs ) High resilience: Effective stretch and resilience properties to ensure the support of the seat or backrest Compatibility: Suitable for structural reinforcement or replacement of components in many styles of sofas and chairs Easy to maintain: Straightforward and easy to install, even for the average furniture enthusiast Maintaining your furniture: Helps to repair collapsing problems and return seats and sofas to a stable and comfortable state