All arms swivel, knobs turn freely, tubes have no blockage. Solid brass, original gilded gold paint. Lot of 5 antique wall lamp gas arms from the same Victorian home in Montreal, Quebec, Canada. Hand made, matching styles and age, some differences in motifs and shapes. Arms measure from 10 1/4 to 10 1/2 inches long approximately. Great to restore wall light sconces and for steampunk projects.