Image Item No. Description By  3947bpx1  Baseplate, Raised 32 x 32 Crater Plate with Crater Studs and Underwater Pattern Catalog: Parts: Baseplate, Raised 1  45179  Baseplate, Raised Ramp 9 x 15 x 2 (Racers) Catalog: Parts: Baseplate, Raised 1  32448  Baseplate, Raised Ramp 17 x 28 x 4 1/2 Catalog: Parts: Baseplate, Raised 63