Image Item No. Description  50923  Technic, Liftarm, Modified Ball Joint Angled 1 x 2 Catalog: Parts: Technic, Liftarm  32140  Technic, Liftarm, Modified Bent Thick L-Shape 2 x 4 Catalog: Parts: Technic, Liftarm  32250  Technic, Liftarm, Modified L-Shape Quarter Ellipse Thin 3 x 5 Catalog: Parts: Technic, Liftarm  32251  Technic, Liftarm, Modified L-Shape Quarter Ellipse Thin 5 x 7 Catalog: Parts: Technic, Liftarm  44374  Technic, Liftarm, Modified Rotor Thin 3 Blade Catalog: Parts: Technic, Liftarm