These are awesome. The harness is easily adjustable without being easily escape-able which meant I can use it on both my toddler and my large handicapped 6 year old. The wrist option is wonderful. I didn't even think it would work until I saw them. Comfortable and secure, they adjust well but then the buckle keeps the child from pulling it off. I would highly recommend for anyone traveling with small or even large children who need to be kept safely by your side through airports, amusement parks, or any other busy area. Someone brilliant designed this set.