11-Piece Rectangular Retort Stand Set with Bossheads, Clamps, and Rings

This 11-piece starter set includes everything needed to begin basic chemistry lab work: a heavy-duty rectangular retort base and support rod, three retort support rings in varying sizes, and three boss heads (right-angle, heavy-duty, and universal swivel), plus four vinyl-coated clamps — a two-prong test-tube clamp, two-prong dual-adjustment clamp, three-finger single-adjustment clamp, and four-finger single-adjustment clamp. The durable and sturdy construction makes the set well suited to science classrooms, household laboratories, and basic professional laboratory setups. A good upgrade path for an existing lab as well.