To attach the toolbag to your harness or climbing belt, you can use a karabiner or small snapper. It is also possible to use the special Petzl Interfast. The Interfast attaches to your belt and can then be used to clip in the toolbag. The toolbag can be closed by pulling the drawstring. To open the bag, you can pull the yellow loop. Both opening and closing can be done with one hand even with gloves on. Colour: yellow - black. Available in 3 sizes. 1.5 litres: extra small size, suitable for small equipment such as a tape measure, nuts/screws, pen, etc. 3 litres: small size, suitable for materials that take up little space such as a tape measure, nuts/screws, pen, etc. 6 litres: large size, suitable for hand tools such as a hammer and/or screwdrivers.