PVC caps from 1 1/2 to 36 to protect steel pipe endsthe height from 1 1/2 to 3 height 35mm,3 1/2 to 24 height 55mm,more than 24 height more than 80mm factory produce PVC caps can be export and will be tight and not fall off from the pipes.factory produce PVC caps can be export and will be tight and not fall off from the pipes.Show More