Friendly Reminder: Measure the thickness of the bed frame before purchasing our mattress slip stopper to make sure the mattress stabilizer bar fits the bed frame and holding the mattress in place.
The opening of the mattress retainer bar to prevent sliding has three different sizes: 1.2 cm (0.47""), 1.8 cm (0.98""), 3cm (1.18"").
Application: The mattress slide stopper can prevent the mattress from moving, insert the mattress stopper into the outer rail of the bed frame and then tighten the screws moderately (tightening too tightly will backfire), you can prevent the mattress from sliding.
Safe Design: The four corners of mattress holder to prevent sliding are all arc-shaped to protect your mattress and you from being scratched.
Package includes: 6 pieces non slip mattress gripper,6 set screws you can set 2 on each side. Bed rail hardware can be used to fix the mattress holder to prevent it from falling.