【Heavy Duty 100% Stainless Steel C Stand】 Solidly engineered with sturdy stainless steel, this durable NEEWER C stand with boom arm is a heavy duty mounting solution for studio monolights, LED video lights, softboxes, reflectors, photography umbrellas, and other equipment | 【Extension Grip Arm/Two Grip Heads】 Two grip heads with 4 different sized holes can lock rods, arms, and umbrella shafts and allow free angle adjustment. The 33"/83cm extension grip boom arm with 1/4" and 3/8" screws is compatible with various equipment and accessories up to 17.6lb/8kg in weight | 【Spring Loaded Photography Light Stand】 Spring cushions inside the center column can protect the mounted device from shocks and impact and prevent your hands from being pinched when loosening any of the screw knobs | 【Extendible & Robust Center Column】 The adjustable center column offers a 38"-68"/97-172cm height range for low angle photography and video recording. Reinforced for better stability, the diameters of 3 telescopic sections are 1.4"/35mm, 1.2"/30mm, and 1"/25mm, respectively-strong enough to support equipment of up to 44lb/20kg | 【Folding Turtle Base with Nonslip Feet】 The turtle base can fold flat for easy storage and features nonslip rubber feet to avoid scratches on the floor. Sandbags (sold separately) can be positioned on the turtle base for increased stability