• Made of high-strength stainless steel, including butterfly screws, for a robust and durable load capacity. • Galvanized finish that provides resistance to oxidation and rust. • Metal tube dimensions: length of 14.2 cm and inner diameter of 4 cm. • Clamp adjustment range: 0-5 cm, suitable for umbrellas, flags, and fishing rods. • Easy installation without tools, with tightening screws that include rubber sleeves to protect the railing. • Includes an umbrella hook with four hooks, ideal for hanging outdoor items. • Compatible with surfaces up to 5 cm thick, suitable for terraces, bleachers, benches, boats, fences, among others.