Grey iron casting protection of the bottom of tree it is used at the bottom of trees et the park gardens and pavement.Rectangle Tree GratingsMaterial*EN GJL 250 & DIN GG 25Class*C 250Product Info Product weight is 80 kg. Manufactured in compliance with EN124 NotesWeight tolerance: plus or minus 2 kg (up to 24 kg)plus or minus 3 kg (24�125 kg)and plus or minus 4 kg (over 125 kg).