1、Application Range: Clamping range is 20‑100mm/0.8‑3.9in, so that can be used on 20‑100mm/0.8‑3.9in diameter bracket tubes or 20‑100mm/0.8‑3.9in thick desk, door sheet or windows. 2、Powerful Tool: Has 3pcs 5/8in standard connectors for lamp holder, able to meet the needs for multi lamp lighting at the same time, will make your photo have fantastic effect. 3、Wide Application: Can be clamped on water pipes, railings, doors, shelves, tables, branches, on any shape of objects, less the environmental restriction and allow you to perform at your best. 4、Multi Functional Holder: Studs can also be fitted with dome shaped or umbrella connectors, able to help photographers easily secure lights and other accessories. 5、Portable Item: Has small size and light weight, making the photography accessory clamp easy to carry with your bags and backpacks, will not take much effort or time.