This harness can be used for walks, as a chair belt when out and about, and as a Stokke attachment belt at home. Instructions for attaching it to a Stokke can be found by searching the web. Please refer to articles such as "Using a Richell belt to prevent standing up or getting out of the chair during meals." This product allows you to do the same thing as the Richell belt. The "3-way" in the product name refers to the three different ways the harness can be fastened (see the instructions in the final image for details). The chest pad becomes a bag, making it easy to carry. It has been used, but it is still in good condition. (Please refer to the images to judge.) This is a used item that has been used by a child, so please purchase only if you understand that it has been stored at home. Packaging will use recycled materials and will be sent compactly.