1.) All Kinds of handrail end cap: End Cap "Self Grip", End Cap "Dome", End Cap "Flat", End Cap "Light Knock-in" Handrail End, Bar End Cap and so on. 2.) Material: AISI316, AISI304 with mirror & satin finish 3.) Size: 2", 1.5", 48.3mm, 42.4mm and 33.7tube, for 10mm, 12mm and 14mm rod