description coupling pin spring retainer the spring retainer secures the coupling pins in place. california proposition 65 warning. features made of galvanized steel 2 in. long works with all scaffold coupling pins allows easy removal and instalation of coupling pins to scaffold frame. specifications acme tools brand name acme tools shop acme tools part number sprb assembled weight (lbs) 0.25 california proposition 65 warning required yes globaltradeitemnumber (gtin) 00837654766231 internet product code (ipc) 06e1400dc08 ladder accessory category scaffolding length (in) 2 package weight 0.25 package weight (lbs) 0.25 scaffolding type scaffold accessories upc 837654766231 width (in) 1