304 stainless steel 500cm [punch holes to provide screws]; 304 stainless steel 800cm [punch holes to provide screws]; 304 stainless steel 1000cm [punch holes to provide screws]; 304 stainless steel 500cm [no need for drilling, screws and glue]; 304 stainless steel 800cm [no need for drilling, screws and glue]; 304 stainless steel 1000cm [no need for drilling, screws and glue]