Image Item No. Description  4740  Dish 2 x 2 Inverted (Radar) Catalog: Parts: Dish  43898  Dish 3 x 3 Inverted (Radar) Catalog: Parts: Dish  3960  Dish 4 x 4 Inverted (Radar) with Solid Stud Catalog: Parts: Dish  44375b  Dish 6 x 6 Inverted (Radar) - Solid Studs Catalog: Parts: Dish