Product name: For Mavic 4Pro remote controller, no need to disassemble the aluminum alloy crossbar Material: Aluminum alloy Product features 1. Suitable for RC Pro 2. The aluminum alloy crossbar is made of aluminum alloy, which is strong and is not afraid of shaking and falling off. It can be installed up and down. It is specially designed for RC Pro 2 and does not affect the plug-in. No need to disassemble and store; 2. Comfortable decompression lanyard, soft elastic sponge effectively relieves pressure while relaxing shoulders and neck. The texture is soft and the material is more comfortable to use. The adjustable length can be adjusted according to personal needs (58-86cm); 3. With metal buckle, it has high strength, strong load-bearing capacity, good breathability, wear resistance and elasticity. Double reinforcement is safer and more reliable; Installation steps: 1. Align the bottom hole of the remote control 2. Buckle the shoulder straps on both sides 3. Put in the screws and tighten them 4. Adjust the length to suit your own use set1:RC PRO 2 Aluminum alloy crossbar Net weight: 15.4g (crossbar) Gross weight: 29g Dimensions: 16*4*0.3cm. Delivery size: 19.5*13*1cm (crossbar) Set 2: RC PRO2 aluminum alloy crossbar + comfortable shoulder strap set Net weight: 15.4g (crossbar). Lanyard: 73g Gross weight: 102g Dimensions: 16*4*0.3cm. Lanyard: 58-86cm (lanyard length range) Delivery size: 19.5*13*4.5cm Delivery size: 19.5*13*4.5cm