Mitragyna speciosa is an evergreen tree that can grow to a height of 25 m (82 ft) tall and the trunk may grow to a 3 ft (0.91 m) diameter. The trunk is generally straight and the outer bark is smooth and grey.
Overall though, metal is a much better option than plastic. In most cases, it is much more effective and reliable, and the right choice of metal will avoid the pitfalls of rust or weakness. Aluminium, steel and stainless steel are the three metal gutter materials for guards that homeowners can choose from.
To protect your iron, always use ironing paper to cover the Perler beads. Either parchment paper or wax paper work well as reusable ironing paper. You may not need to buy them separately as some beads packages (e.g. Perler Tray Of 4000 Beads With Idea Book) already include ironing paper.