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.
Expand Most Recent Updates. April 8, 2015: After more than 40 hours of testing plastic storage containers by stuffing them, dropping them, soaking them, and hauling them around, we found the Sterilite 30 Quart Ultra Latching Storage Box has the best balance of durability, security, and affordability ($40 for a six-pack).