Wide range of applications: suitable for round or square tubes which can be assembled telescopically. Can be widely used to lock pipes such as canoe paddles, kayak paddles, tent poles, etc. Easy to install: no additional screws are required, assembly is easy faster and more convenient and the assembly time is reduced. High-quality material: Made of high-quality steel, the structure is firm and stable, will not break or deform and can be used for a long time. Dimensions: tent pole clamp length is about 45mm, knob diameter is about 9mm; the height of the button is about 12mm, the opening of the tent pole is about 60mm. Package content: There are 8 stainless steel spring clips in the packaging, which can meet your daily use and replacement. Note: The data are all measured manually. Due to differences in light and display, please allow 1-3cm error. Please refer to the actual item received.