Water-proof and erosion-proof Environmental friendly and no other hazard chemical Safe to use for many years wpc joist ,wpc installation joist1)Size:90*50mm 2)Weight: 2.4kg/m 3) Color: available4) Application:decking support,pallet5) Water and corrosion resistant, alkali-proof, moth-proof, stainable and malleable, low pollution risk and odor-free WPC joist,wpc installation joist