1、The inner filler adopts steel ball which is harmless to human body. 2、Suitable for outdoor sports such as tree climbing, rock climbing, and spelunking. 3、With premium material at connection part, fine alignment, tear resistant and high tensile strength. The throwing rope bag is suitable for rock climbing, tree climbing, tree working, mountaineering, etc. Features: The inner filler adopts steel ball which is harmless to human body. Suitable for outdoor sports such as tree climbing, rock climbing, and spelunking. With premium material at connection part, fine alignment, tear resistant and high tensile strength. The D ring can easily attach ropes, wires, or hoses, letting you no limit for the high and distant locations demanded on the job. Don't need complicated equipment or climbing. Just hanging a rope on throw weight, and throwing your line on a particular branch, it will make your life much easier than you had ever thought. Specifications: Material: Stainless steel, Oxford fabric Color: Blue/ Yellow/ Camouflage (optional) Size: 11*5*3cm/ 4.3*2*1.2in Weight: 250g/ 8.8oz Package List: 1 * throwing rope bag 1 * throwing rope bag