Doctor-approved, PURE SAFETY Vertical Crib Liners, Protect Baby's Head & Body, Keep Limbs Safely Inside, Provide Optimum Air-flow and Ensure No Risk of suffocation or strangulation associated with horizontal crib bumpers. No dangerous ties - just zip on! 24" high. Compress to accommodate shorter crib rails. Stretch to fit up to rails 3" wide or 6" in circumference. Zip together to cover wider rails or corners. Easy to wash.