Elephant Trunks are normally used with collection hoppers for placing concrete into deep or narrow forms. Flexible and abrasion resistant, it can be attached to a variety of collars to meet job requirements. Elephant trunks are available in light and inexpensive polyvinyl chloride (PVC) synthetic, or a nylon-reinforced plastic which is a sturdy and flexible, yet strong and light. Both types of elephant trunk may be obtained in 6, 8, and 12 inch inside diameter sizes. Heavy duty rubber elephant trunk is available in 6-inch, 8-inch, 12-inch, 16-inch, and larger sizes.

Steel collars are used to support the elephant trunk and connect it to the hopper by chain linkage. Rectangular collars are used when pouring into narrow forms. Round steel collars are available in 6, 8, 12, and 16-inch diameter sizes. Rectangular collars are available to fit all sizes of elephant trunk.