... fiber (Professionally treated dry bamboo/wood fiber)= 30% HDPE (A Grade Recycled HDPE)=10% chemical additives (Anti-UV agent, ... and pressure, so it is a kind of insect proof, green environment responsible material based on a 10 years warranty. Main feathers ... labor cost6.Required no painting, no glue, low maintenance7.100% recycled, environmental friendly, saving forest resources8.Barefoot friendly, ...