Features: Quick lens replacement equipment, lens holder, can help you carry the lens more conveniently. It allows you to switching the lens from short to long within 10s, which is convenient and fast. With its unique design, suitable for any occasion, wedding banquets, birthday party, or professional fashion show. Specially designing for professional photographers or those who need to shoot in different ways. Comes with shoulder strap and 2pcs metal buckles for easy carrying and securing, avoiding accidental loss. Specifications: Main Material: Metal Size: approx. 61x61x31mm/2.4x2.4x1.22inch Applicable Model: Suitable for DSLR Lens Package Includes: 1Pc Lens Switcher 1Pc Shoulder Strap 2Pcs Metal Hook note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.