Image Item No. Description  15625  Slope, Curved 5 x 8 x 2/3 with 4 Studs Catalog: Parts: Slope, Curved  11290  Slope, Curved 8 x 2 x 2 Double Catalog: Parts: Slope, Curved  11301  Slope, Curved 8 x 2 x 2 Inverted Double Catalog: Parts: Slope, Curved