Green Trampoline Safety Pad (Spring Cover) fits for: 38" NordicTrack Trampoline High Quality and durable Safety Pad with 250g PVC on Top, 110g PVC on bottom and 4.5mm foam thickness Top Quality Manufactured Fits very neat on the trampoline Elastic rubber band all around the safety pad on top and bottom to keep it firm and steady around the trampoline frame. Holes on the outer flap of pad so you can put the trampolines legs through it.