description caster for 6 ft. steel rolling scaffold src-72-4 is a replacement caster for the srs-72 steel rolling scaffold. it locks for stability, but also unlocks and swivels for 360-degree mobility. california proposition 65 warning. features locking caster swivels for 360° mobility replacement caster for werner 6-ft rolling scaffold model srs-72 caster locks and swivels for convenient mobility black and chrome finish specifications acme tools brand name werner acme tools part number src-72-4 ansi approved no assembled weight (lbs) 3.5 california proposition 65 warning required yes caster / wheel diameter (in) 5.0 caster / wheel locking yes caster / wheel material rubber color / finish black and chrome finish country of origin china globaltradeitemnumber (gtin) 00051751094824 internal supplier part # src-72-4 internet product code (ipc) 656b5a3b1e7 ladder accessory category scaffolding length (in) 9.429 manufacturer warranty n/a meets ansi or osha standards no osha approved no package contents 1 caster package weight 37.0 package weight (lbs) 37 scaffolding type scaffold accessories upc 051751094824 width (in) 5.125