Couple of stay arms for top hung window, length of 28″ (711,2 mm), in austenitic (not magnetic) AISI 304 stainless steel, non-handed, with opening restrictor device and adjustment frictioning grub screw, opening angle 15° or 20°. Weight capacity 135/130 Kg (297,62/286,60 lbs). Suitable to profiles with clearance >= 16.5 mm.