This pair of hooks is made of Aluminum alloy. They are easy to install and remove, repeatable access, too. The hooks is fully rotatable, they are great for carrying shopping bags, diaper and daily articles. Besides, these hooks work well on wheelchairs as well. Feature - Color: White + silver. - Material: Aluminum alloy + PU. - Size: About 9 x 12 x 0.7cm. - Heavy-duty baby stroller hook with simple design, easy for you your bags, keys, wallet. - It is a best gift for yourself or friends who have babies especially new parents. - It really helps release burden on shopping while taking care of babies. - Great partner for carts, bikes, baby strollers, walking rollators, dog leashes, wheelchairs. - It is a very convenience bag purse hook.They are the best hanger for baby diaper bags, groceries, clothing, purse. - These stroller diaper bag clips will bring you great convenience when walking, shopping or picnicking.When you take care of your baby, you don't have to worry about losing or forgetting your belongings.