2019 Parts Fest #1: Samuel Pister's tube and king | New Elementary: LEGO® parts, sets and techniques
Amazon.com: LEGO Tubes Experiment DUPLO Set 9076, Fun STEM Educational Toy, STEAM Learning for Girls and Boys Ages 1.5 and up (142 Pieces) : Toys & Games
Hose, Rigid 3mm D. 14L / 11.2cm : Part 75c14 | BrickLink