The Sumner Max Jax Kit No. 1 (Model 781403) includes a five‑leg basic stand, 12″ roller vee‑head and caster kit. Adjustable height from approximately 30″ to 42½″ (77–108 cm), it supports pipe from 4″ to 36″ and up to 2,500 lb (1,135 kg). Features a large adjustment handle, CE rating for safety, and easy mobility across job sites or shops thanks to the casters.