PENTHOOM round sticks for sofa cover tucking use quality EPE material with 25KG/M3 density makes them flexible and long-lasting. This sofa inserts foam does not crumble easily, making them a top choice everywhere. Safe for children and pets. To install, one only need to slide these sofa tucks grips into the gap between the arm and cushion to hold the fabric in place. These stretch slipcover foam inserts are soft and light, and therefore can be easily squeezed into the gap. These foam sticks for sofa cover is perfectly sized for almost all type of couches and sofas. Each sofa inserts foam sticks are 20mm in diameter with 25cm in length. For couches with wider gaps, you can overlap multiple couch cover foam rollers to achieve better results. These couch cover tuck grips keep the slipcover in place. Help to reduce the loose folds and wrinkles of elastic sofa covers and slipcovers. This foam not only can be used as a tuck once slipcover grips or sofa tuck grips, but also can be used for different DIY purposes, easily customize with paint, rope, ribbon, flowers and embellishments. It can also be used as gap-filling foam.