This is a shoulder strap from JJC. The strap is easy to detach with a one-touch release. Adjustable length: 95cm-145cm Strap width: 33mm Accessories are as shown in the photos; an L-shaped wrench is not included. The following is the product description from Amazon: ★Wide Compatibility★: Compatible with almost all SLR and mirrorless cameras from Canon, Nikon, Sony, Fujifilm, Olympus, Panasonic, Pentax, Samsung, Leica, etc. This strap can be worn over the shoulder, around the neck, or diagonally across the body. ★Adjustable Strap★: Easily adjust to your preferred length by pulling down the adjustment D-buckle. The length can be widely adjusted from 95cm to 145cm, allowing you to adjust the strap to your height. ★High-Quality Materials★: Made of high-quality nylon material for the belt, which is soft, comfortable, and breathable. The padded part is made of breathable microfiber leather, reducing the burden on the neck and shoulders and improving shoulder comfort. ★Special Quick Release Design★: Adopts a quick-release design, which is sturdy and durable, and can be removed quickly and safely. It is very useful in shooting scenes and adds to the fun of taking photos! ★Maximum Load Capacity 90KG★: Although the strap width is only 33mm, it can withstand a weight of up to 90kg. An Arca-style quick-release plate is included, allowing you to attach a tripod directly without removing the strap.