products > Side Curtain Systems > roller × roller, double with ball bearing Specifications D: 30,50 mm Br: 24 mm Product Variants Art.Nr. / PU A length L s D Br Bst 31.3366.01 1 28 63 4 30,50 24 66 roller, double with ball bearingzic plated 31.3366.01 50 28 63 4 30,50 24 66 roller, double with ball bearingzinc plated