The Stansport Propane Cylinder bBase is compatible with most standard 16.4 oz propane canisters. Its wide DuraBase provides a stable platform for propane accessories while camping, backpacking or enjoying your own backyard. Swivel extension feet for added stability on a variety of surfaces. Feet that fold away compactly for storage and travel. Made of durable high impact plastic. Replacement base for your camping propane cylinders.